Home / 31,753.64-43,839.83-20,442.73

Finding the Fourth Proportional to 31,753.64, 43,839.83 and 20,442.73

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Solution

The fourth proportional to 31,753.64, 43,839.83 and 20,442.73 is: 28,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.64 : 43,839.83 = 20,442.73 : x
  2. Step 2: Convert to fraction form
    31,753.64/43,839.83 = 20,442.73/x
  3. Step 3: Cross multiply
    31,753.64x = 43,839.83 × 20,442.73
  4. Step 4: Simplify right side
    31,753.64x = 896,205,807.94
  5. Step 5: Solve for x
    x = 896,205,807.94/31,753.64
  6. Step 6: Final answer
    x = 28,223.72

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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.