Home / 27,901.56-38,503.45-15,801.78

Finding the Fourth Proportional to 27,901.56, 38,503.45 and 15,801.78

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Solution

The fourth proportional to 27,901.56, 38,503.45 and 15,801.78 is: 21,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.56 : 38,503.45 = 15,801.78 : x
  2. Step 2: Convert to fraction form
    27,901.56/38,503.45 = 15,801.78/x
  3. Step 3: Cross multiply
    27,901.56x = 38,503.45 × 15,801.78
  4. Step 4: Simplify right side
    27,901.56x = 608,423,210.28
  5. Step 5: Solve for x
    x = 608,423,210.28/27,901.56
  6. Step 6: Final answer
    x = 21,806.06

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Half scale
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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.