Home / 39,658.59-54,732.38-21,757.07

Finding the Fourth Proportional to 39,658.59, 54,732.38 and 21,757.07

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Solution

The fourth proportional to 39,658.59, 54,732.38 and 21,757.07 is: 30,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,658.59 : 54,732.38 = 21,757.07 : x
  2. Step 2: Convert to fraction form
    39,658.59/54,732.38 = 21,757.07/x
  3. Step 3: Cross multiply
    39,658.59x = 54,732.38 × 21,757.07
  4. Step 4: Simplify right side
    39,658.59x = 1,190,816,250.97
  5. Step 5: Solve for x
    x = 1,190,816,250.97/39,658.59
  6. Step 6: Final answer
    x = 30,026.69

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1.5x scale

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.