Home / 39,342.59-54,292.77-21,437.60

Finding the Fourth Proportional to 39,342.59, 54,292.77 and 21,437.60

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Solution

The fourth proportional to 39,342.59, 54,292.77 and 21,437.60 is: 29,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.59 : 54,292.77 = 21,437.60 : x
  2. Step 2: Convert to fraction form
    39,342.59/54,292.77 = 21,437.60/x
  3. Step 3: Cross multiply
    39,342.59x = 54,292.77 × 21,437.60
  4. Step 4: Simplify right side
    39,342.59x = 1,163,906,414.69
  5. Step 5: Solve for x
    x = 1,163,906,414.69/39,342.59
  6. Step 6: Final answer
    x = 29,583.88

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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.