Home / 27,765.42-38,317.18-15,190.16

Finding the Fourth Proportional to 27,765.42, 38,317.18 and 15,190.16

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Solution

The fourth proportional to 27,765.42, 38,317.18 and 15,190.16 is: 20,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.42 : 38,317.18 = 15,190.16 : x
  2. Step 2: Convert to fraction form
    27,765.42/38,317.18 = 15,190.16/x
  3. Step 3: Cross multiply
    27,765.42x = 38,317.18 × 15,190.16
  4. Step 4: Simplify right side
    27,765.42x = 582,044,094.95
  5. Step 5: Solve for x
    x = 582,044,094.95/27,765.42
  6. Step 6: Final answer
    x = 20,962.91

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Double scale
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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.