Home / 18,375.65-27,577.34-13,458.04

Finding the Fourth Proportional to 18,375.65, 27,577.34 and 13,458.04

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Solution

The fourth proportional to 18,375.65, 27,577.34 and 13,458.04 is: 20,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.65 : 27,577.34 = 13,458.04 : x
  2. Step 2: Convert to fraction form
    18,375.65/27,577.34 = 13,458.04/x
  3. Step 3: Cross multiply
    18,375.65x = 27,577.34 × 13,458.04
  4. Step 4: Simplify right side
    18,375.65x = 371,136,909.52
  5. Step 5: Solve for x
    x = 371,136,909.52/18,375.65
  6. Step 6: Final answer
    x = 20,197.21

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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.