Home / 38,929.38-53,722.55-21,024.39

Finding the Fourth Proportional to 38,929.38, 53,722.55 and 21,024.39

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Solution

The fourth proportional to 38,929.38, 53,722.55 and 21,024.39 is: 29,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.38 : 53,722.55 = 21,024.39 : x
  2. Step 2: Convert to fraction form
    38,929.38/53,722.55 = 21,024.39/x
  3. Step 3: Cross multiply
    38,929.38x = 53,722.55 × 21,024.39
  4. Step 4: Simplify right side
    38,929.38x = 1,129,483,737.87
  5. Step 5: Solve for x
    x = 1,129,483,737.87/38,929.38
  6. Step 6: Final answer
    x = 29,013.66

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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.