Home / 27,847.38-38,428.59-15,910.47

Finding the Fourth Proportional to 27,847.38, 38,428.59 and 15,910.47

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Solution

The fourth proportional to 27,847.38, 38,428.59 and 15,910.47 is: 21,955.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.38 : 38,428.59 = 15,910.47 : x
  2. Step 2: Convert to fraction form
    27,847.38/38,428.59 = 15,910.47/x
  3. Step 3: Cross multiply
    27,847.38x = 38,428.59 × 15,910.47
  4. Step 4: Simplify right side
    27,847.38x = 611,416,928.34
  5. Step 5: Solve for x
    x = 611,416,928.34/27,847.38
  6. Step 6: Final answer
    x = 21,955.99

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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.