Home / 27,589.13-38,073-15,013.88

Finding the Fourth Proportional to 27,589.13, 38,073 and 15,013.88

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Solution

The fourth proportional to 27,589.13, 38,073 and 15,013.88 is: 20,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,589.13 : 38,073 = 15,013.88 : x
  2. Step 2: Convert to fraction form
    27,589.13/38,073 = 15,013.88/x
  3. Step 3: Cross multiply
    27,589.13x = 38,073 × 15,013.88
  4. Step 4: Simplify right side
    27,589.13x = 571,623,262.88
  5. Step 5: Solve for x
    x = 571,623,262.88/27,589.13
  6. Step 6: Final answer
    x = 20,719.15

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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.