Home / 27,721.38-38,255.50-15,146.22

Finding the Fourth Proportional to 27,721.38, 38,255.50 and 15,146.22

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Solution

The fourth proportional to 27,721.38, 38,255.50 and 15,146.22 is: 20,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.38 : 38,255.50 = 15,146.22 : x
  2. Step 2: Convert to fraction form
    27,721.38/38,255.50 = 15,146.22/x
  3. Step 3: Cross multiply
    27,721.38x = 38,255.50 × 15,146.22
  4. Step 4: Simplify right side
    27,721.38x = 579,426,027.93
  5. Step 5: Solve for x
    x = 579,426,027.93/27,721.38
  6. Step 6: Final answer
    x = 20,901.78

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Half scale
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Double scale
Find fourth proportional to 27,722.38, 38,256.88 and 15,147.22
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.