Home / 39,909.65-55,074.06-22,005

Finding the Fourth Proportional to 39,909.65, 55,074.06 and 22,005

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Solution

The fourth proportional to 39,909.65, 55,074.06 and 22,005 is: 30,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.65 : 55,074.06 = 22,005 : x
  2. Step 2: Convert to fraction form
    39,909.65/55,074.06 = 22,005/x
  3. Step 3: Cross multiply
    39,909.65x = 55,074.06 × 22,005
  4. Step 4: Simplify right side
    39,909.65x = 1,211,904,690.30
  5. Step 5: Solve for x
    x = 1,211,904,690.30/39,909.65
  6. Step 6: Final answer
    x = 30,366.21

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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.