Home / 20,132.04-30,172.52-11,371.88

Finding the Fourth Proportional to 20,132.04, 30,172.52 and 11,371.88

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Solution

The fourth proportional to 20,132.04, 30,172.52 and 11,371.88 is: 17,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.04 : 30,172.52 = 11,371.88 : x
  2. Step 2: Convert to fraction form
    20,132.04/30,172.52 = 11,371.88/x
  3. Step 3: Cross multiply
    20,132.04x = 30,172.52 × 11,371.88
  4. Step 4: Simplify right side
    20,132.04x = 343,118,276.74
  5. Step 5: Solve for x
    x = 343,118,276.74/20,132.04
  6. Step 6: Final answer
    x = 17,043.39

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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.