Home / 39,385.19-54,352.88-21,481.17

Finding the Fourth Proportional to 39,385.19, 54,352.88 and 21,481.17

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Solution

The fourth proportional to 39,385.19, 54,352.88 and 21,481.17 is: 29,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.19 : 54,352.88 = 21,481.17 : x
  2. Step 2: Convert to fraction form
    39,385.19/54,352.88 = 21,481.17/x
  3. Step 3: Cross multiply
    39,385.19x = 54,352.88 × 21,481.17
  4. Step 4: Simplify right side
    39,385.19x = 1,167,563,347.86
  5. Step 5: Solve for x
    x = 1,167,563,347.86/39,385.19
  6. Step 6: Final answer
    x = 29,644.73

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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.