Home / 39,385.61-54,350-22,387.49

Finding the Fourth Proportional to 39,385.61, 54,350 and 22,387.49

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Solution

The fourth proportional to 39,385.61, 54,350 and 22,387.49 is: 30,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.61 : 54,350 = 22,387.49 : x
  2. Step 2: Convert to fraction form
    39,385.61/54,350 = 22,387.49/x
  3. Step 3: Cross multiply
    39,385.61x = 54,350 × 22,387.49
  4. Step 4: Simplify right side
    39,385.61x = 1,216,760,081.50
  5. Step 5: Solve for x
    x = 1,216,760,081.50/39,385.61
  6. Step 6: Final answer
    x = 30,893.52

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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.