Home / 39,240.44-54,151.17-21,335.28

Finding the Fourth Proportional to 39,240.44, 54,151.17 and 21,335.28

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Solution

The fourth proportional to 39,240.44, 54,151.17 and 21,335.28 is: 29,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240.44 : 54,151.17 = 21,335.28 : x
  2. Step 2: Convert to fraction form
    39,240.44/54,151.17 = 21,335.28/x
  3. Step 3: Cross multiply
    39,240.44x = 54,151.17 × 21,335.28
  4. Step 4: Simplify right side
    39,240.44x = 1,155,330,374.28
  5. Step 5: Solve for x
    x = 1,155,330,374.28/39,240.44
  6. Step 6: Final answer
    x = 29,442.34

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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.