Home / 22,593.13-31,179.30-13,638.88

Finding the Fourth Proportional to 22,593.13, 31,179.30 and 13,638.88

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Solution

The fourth proportional to 22,593.13, 31,179.30 and 13,638.88 is: 18,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,593.13 : 31,179.30 = 13,638.88 : x
  2. Step 2: Convert to fraction form
    22,593.13/31,179.30 = 13,638.88/x
  3. Step 3: Cross multiply
    22,593.13x = 31,179.30 × 13,638.88
  4. Step 4: Simplify right side
    22,593.13x = 425,250,719.01
  5. Step 5: Solve for x
    x = 425,250,719.01/22,593.13
  6. Step 6: Final answer
    x = 18,822.13

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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.