Home / 22,584.78-31,172.17-15,031.43

Finding the Fourth Proportional to 22,584.78, 31,172.17 and 15,031.43

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Solution

The fourth proportional to 22,584.78, 31,172.17 and 15,031.43 is: 20,746.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,584.78 : 31,172.17 = 15,031.43 : x
  2. Step 2: Convert to fraction form
    22,584.78/31,172.17 = 15,031.43/x
  3. Step 3: Cross multiply
    22,584.78x = 31,172.17 × 15,031.43
  4. Step 4: Simplify right side
    22,584.78x = 468,562,291.30
  5. Step 5: Solve for x
    x = 468,562,291.30/22,584.78
  6. Step 6: Final answer
    x = 20,746.82

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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.