Home / 22,819.26-31,490.82-13,387.98

Finding the Fourth Proportional to 22,819.26, 31,490.82 and 13,387.98

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Solution

The fourth proportional to 22,819.26, 31,490.82 and 13,387.98 is: 18,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,819.26 : 31,490.82 = 13,387.98 : x
  2. Step 2: Convert to fraction form
    22,819.26/31,490.82 = 13,387.98/x
  3. Step 3: Cross multiply
    22,819.26x = 31,490.82 × 13,387.98
  4. Step 4: Simplify right side
    22,819.26x = 421,598,468.34
  5. Step 5: Solve for x
    x = 421,598,468.34/22,819.26
  6. Step 6: Final answer
    x = 18,475.55

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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.