Home / 28,412.45-42,617.14-8,691.01

Finding the Fourth Proportional to 28,412.45, 42,617.14 and 8,691.01

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Solution

The fourth proportional to 28,412.45, 42,617.14 and 8,691.01 is: 13,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.45 : 42,617.14 = 8,691.01 : x
  2. Step 2: Convert to fraction form
    28,412.45/42,617.14 = 8,691.01/x
  3. Step 3: Cross multiply
    28,412.45x = 42,617.14 × 8,691.01
  4. Step 4: Simplify right side
    28,412.45x = 370,385,976.57
  5. Step 5: Solve for x
    x = 370,385,976.57/28,412.45
  6. Step 6: Final answer
    x = 13,036.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.