Home / 15,581.79-23,375.79-5,721.18

Finding the Fourth Proportional to 15,581.79, 23,375.79 and 5,721.18

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Solution

The fourth proportional to 15,581.79, 23,375.79 and 5,721.18 is: 8,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.79 : 23,375.79 = 5,721.18 : x
  2. Step 2: Convert to fraction form
    15,581.79/23,375.79 = 5,721.18/x
  3. Step 3: Cross multiply
    15,581.79x = 23,375.79 × 5,721.18
  4. Step 4: Simplify right side
    15,581.79x = 133,737,102.23
  5. Step 5: Solve for x
    x = 133,737,102.23/15,581.79
  6. Step 6: Final answer
    x = 8,582.91

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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.