Home / 27,860.29-38,437.84-15,915.17

Finding the Fourth Proportional to 27,860.29, 38,437.84 and 15,915.17

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Solution

The fourth proportional to 27,860.29, 38,437.84 and 15,915.17 is: 21,957.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.29 : 38,437.84 = 15,915.17 : x
  2. Step 2: Convert to fraction form
    27,860.29/38,437.84 = 15,915.17/x
  3. Step 3: Cross multiply
    27,860.29x = 38,437.84 × 15,915.17
  4. Step 4: Simplify right side
    27,860.29x = 611,744,758.03
  5. Step 5: Solve for x
    x = 611,744,758.03/27,860.29
  6. Step 6: Final answer
    x = 21,957.59

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Half scale
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Double scale
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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.