Home / 39,772.80-54,864-23,003.52

Finding the Fourth Proportional to 39,772.80, 54,864 and 23,003.52

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Solution

The fourth proportional to 39,772.80, 54,864 and 23,003.52 is: 31,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.80 : 54,864 = 23,003.52 : x
  2. Step 2: Convert to fraction form
    39,772.80/54,864 = 23,003.52/x
  3. Step 3: Cross multiply
    39,772.80x = 54,864 × 23,003.52
  4. Step 4: Simplify right side
    39,772.80x = 1,262,065,121.28
  5. Step 5: Solve for x
    x = 1,262,065,121.28/39,772.80
  6. Step 6: Final answer
    x = 31,731.87

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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.