Home / 38,898.90-53,680.68-22,131.90

Finding the Fourth Proportional to 38,898.90, 53,680.68 and 22,131.90

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Solution

The fourth proportional to 38,898.90, 53,680.68 and 22,131.90 is: 30,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.90 : 53,680.68 = 22,131.90 : x
  2. Step 2: Convert to fraction form
    38,898.90/53,680.68 = 22,131.90/x
  3. Step 3: Cross multiply
    38,898.90x = 53,680.68 × 22,131.90
  4. Step 4: Simplify right side
    38,898.90x = 1,188,055,441.69
  5. Step 5: Solve for x
    x = 1,188,055,441.69/38,898.90
  6. Step 6: Final answer
    x = 30,542.13

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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.