Home / 39,255.18-54,171.62-21,349.80

Finding the Fourth Proportional to 39,255.18, 54,171.62 and 21,349.80

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Solution

The fourth proportional to 39,255.18, 54,171.62 and 21,349.80 is: 29,462.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,255.18 : 54,171.62 = 21,349.80 : x
  2. Step 2: Convert to fraction form
    39,255.18/54,171.62 = 21,349.80/x
  3. Step 3: Cross multiply
    39,255.18x = 54,171.62 × 21,349.80
  4. Step 4: Simplify right side
    39,255.18x = 1,156,553,252.68
  5. Step 5: Solve for x
    x = 1,156,553,252.68/39,255.18
  6. Step 6: Final answer
    x = 29,462.44

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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.