Home / 39,963.74-55,158.02-22,979.86

Finding the Fourth Proportional to 39,963.74, 55,158.02 and 22,979.86

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Solution

The fourth proportional to 39,963.74, 55,158.02 and 22,979.86 is: 31,716.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,963.74 : 55,158.02 = 22,979.86 : x
  2. Step 2: Convert to fraction form
    39,963.74/55,158.02 = 22,979.86/x
  3. Step 3: Cross multiply
    39,963.74x = 55,158.02 × 22,979.86
  4. Step 4: Simplify right side
    39,963.74x = 1,267,523,577.48
  5. Step 5: Solve for x
    x = 1,267,523,577.48/39,963.74
  6. Step 6: Final answer
    x = 31,716.84

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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.