Home / 40,032.80-55,239.61-22,805.61

Finding the Fourth Proportional to 40,032.80, 55,239.61 and 22,805.61

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Solution

The fourth proportional to 40,032.80, 55,239.61 and 22,805.61 is: 31,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,032.80 : 55,239.61 = 22,805.61 : x
  2. Step 2: Convert to fraction form
    40,032.80/55,239.61 = 22,805.61/x
  3. Step 3: Cross multiply
    40,032.80x = 55,239.61 × 22,805.61
  4. Step 4: Simplify right side
    40,032.80x = 1,259,773,140.31
  5. Step 5: Solve for x
    x = 1,259,773,140.31/40,032.80
  6. Step 6: Final answer
    x = 31,468.53

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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.