Home / 20,127.80-30,179.46-9,032.42

Finding the Fourth Proportional to 20,127.80, 30,179.46 and 9,032.42

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Solution

The fourth proportional to 20,127.80, 30,179.46 and 9,032.42 is: 13,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.80 : 30,179.46 = 9,032.42 : x
  2. Step 2: Convert to fraction form
    20,127.80/30,179.46 = 9,032.42/x
  3. Step 3: Cross multiply
    20,127.80x = 30,179.46 × 9,032.42
  4. Step 4: Simplify right side
    20,127.80x = 272,593,558.09
  5. Step 5: Solve for x
    x = 272,593,558.09/20,127.80
  6. Step 6: Final answer
    x = 13,543.14

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1.5x scale

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.