Home / 22,593.20-31,178.16-12,521.57

Finding the Fourth Proportional to 22,593.20, 31,178.16 and 12,521.57

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Solution

The fourth proportional to 22,593.20, 31,178.16 and 12,521.57 is: 17,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,593.20 : 31,178.16 = 12,521.57 : x
  2. Step 2: Convert to fraction form
    22,593.20/31,178.16 = 12,521.57/x
  3. Step 3: Cross multiply
    22,593.20x = 31,178.16 × 12,521.57
  4. Step 4: Simplify right side
    22,593.20x = 390,399,357.02
  5. Step 5: Solve for x
    x = 390,399,357.02/22,593.20
  6. Step 6: Final answer
    x = 17,279.51

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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.