Home / 39,680.12-54,763.62-22,909.88

Finding the Fourth Proportional to 39,680.12, 54,763.62 and 22,909.88

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Solution

The fourth proportional to 39,680.12, 54,763.62 and 22,909.88 is: 31,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.12 : 54,763.62 = 22,909.88 : x
  2. Step 2: Convert to fraction form
    39,680.12/54,763.62 = 22,909.88/x
  3. Step 3: Cross multiply
    39,680.12x = 54,763.62 × 22,909.88
  4. Step 4: Simplify right side
    39,680.12x = 1,254,627,962.57
  5. Step 5: Solve for x
    x = 1,254,627,962.57/39,680.12
  6. Step 6: Final answer
    x = 31,618.55

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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.