Home / 39,387.60-54,356.31-22,394.70

Finding the Fourth Proportional to 39,387.60, 54,356.31 and 22,394.70

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Solution

The fourth proportional to 39,387.60, 54,356.31 and 22,394.70 is: 30,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.60 : 54,356.31 = 22,394.70 : x
  2. Step 2: Convert to fraction form
    39,387.60/54,356.31 = 22,394.70/x
  3. Step 3: Cross multiply
    39,387.60x = 54,356.31 × 22,394.70
  4. Step 4: Simplify right side
    39,387.60x = 1,217,293,255.56
  5. Step 5: Solve for x
    x = 1,217,293,255.56/39,387.60
  6. Step 6: Final answer
    x = 30,905.49

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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.