Home / 22,592.85-31,178.39-12,521.45

Finding the Fourth Proportional to 22,592.85, 31,178.39 and 12,521.45

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Solution

The fourth proportional to 22,592.85, 31,178.39 and 12,521.45 is: 17,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,592.85 : 31,178.39 = 12,521.45 : x
  2. Step 2: Convert to fraction form
    22,592.85/31,178.39 = 12,521.45/x
  3. Step 3: Cross multiply
    22,592.85x = 31,178.39 × 12,521.45
  4. Step 4: Simplify right side
    22,592.85x = 390,398,432.97
  5. Step 5: Solve for x
    x = 390,398,432.97/22,592.85
  6. Step 6: Final answer
    x = 17,279.73

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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.