Home / 42,044.40-57,990.78-28,591.74

Finding the Fourth Proportional to 42,044.40, 57,990.78 and 28,591.74

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Solution

The fourth proportional to 42,044.40, 57,990.78 and 28,591.74 is: 39,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,044.40 : 57,990.78 = 28,591.74 : x
  2. Step 2: Convert to fraction form
    42,044.40/57,990.78 = 28,591.74/x
  3. Step 3: Cross multiply
    42,044.40x = 57,990.78 × 28,591.74
  4. Step 4: Simplify right side
    42,044.40x = 1,658,057,304.16
  5. Step 5: Solve for x
    x = 1,658,057,304.16/42,044.40
  6. Step 6: Final answer
    x = 39,435.87

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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.