Home / 27,962.40-38,588.12-15,387.15

Finding the Fourth Proportional to 27,962.40, 38,588.12 and 15,387.15

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Solution

The fourth proportional to 27,962.40, 38,588.12 and 15,387.15 is: 21,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.40 : 38,588.12 = 15,387.15 : x
  2. Step 2: Convert to fraction form
    27,962.40/38,588.12 = 15,387.15/x
  3. Step 3: Cross multiply
    27,962.40x = 38,588.12 × 15,387.15
  4. Step 4: Simplify right side
    27,962.40x = 593,761,305.14
  5. Step 5: Solve for x
    x = 593,761,305.14/27,962.40
  6. Step 6: Final answer
    x = 21,234.27

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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.