Home / 27,640.02-38,143.78-15,064.76

Finding the Fourth Proportional to 27,640.02, 38,143.78 and 15,064.76

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Solution

The fourth proportional to 27,640.02, 38,143.78 and 15,064.76 is: 20,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.02 : 38,143.78 = 15,064.76 : x
  2. Step 2: Convert to fraction form
    27,640.02/38,143.78 = 15,064.76/x
  3. Step 3: Cross multiply
    27,640.02x = 38,143.78 × 15,064.76
  4. Step 4: Simplify right side
    27,640.02x = 574,626,891.19
  5. Step 5: Solve for x
    x = 574,626,891.19/27,640.02
  6. Step 6: Final answer
    x = 20,789.67

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Find fourth proportional to 13,820.01, 19,071.89 and 7,532.38
Half scale
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Double scale
Find fourth proportional to 27,641.02, 38,145.16 and 15,065.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.