Home / 39,240.48-54,151.98-21,335.42

Finding the Fourth Proportional to 39,240.48, 54,151.98 and 21,335.42

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Solution

The fourth proportional to 39,240.48, 54,151.98 and 21,335.42 is: 29,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240.48 : 54,151.98 = 21,335.42 : x
  2. Step 2: Convert to fraction form
    39,240.48/54,151.98 = 21,335.42/x
  3. Step 3: Cross multiply
    39,240.48x = 54,151.98 × 21,335.42
  4. Step 4: Simplify right side
    39,240.48x = 1,155,355,237.13
  5. Step 5: Solve for x
    x = 1,155,355,237.13/39,240.48
  6. Step 6: Final answer
    x = 29,442.94

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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.