Home / 22,487.76-33,721.20-13,130.55

Finding the Fourth Proportional to 22,487.76, 33,721.20 and 13,130.55

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Solution

The fourth proportional to 22,487.76, 33,721.20 and 13,130.55 is: 19,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.76 : 33,721.20 = 13,130.55 : x
  2. Step 2: Convert to fraction form
    22,487.76/33,721.20 = 13,130.55/x
  3. Step 3: Cross multiply
    22,487.76x = 33,721.20 × 13,130.55
  4. Step 4: Simplify right side
    22,487.76x = 442,777,902.66
  5. Step 5: Solve for x
    x = 442,777,902.66/22,487.76
  6. Step 6: Final answer
    x = 19,689.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.