Home / 21,542.42-32,330.91-11,157.14

Finding the Fourth Proportional to 21,542.42, 32,330.91 and 11,157.14

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Solution

The fourth proportional to 21,542.42, 32,330.91 and 11,157.14 is: 16,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.42 : 32,330.91 = 11,157.14 : x
  2. Step 2: Convert to fraction form
    21,542.42/32,330.91 = 11,157.14/x
  3. Step 3: Cross multiply
    21,542.42x = 32,330.91 × 11,157.14
  4. Step 4: Simplify right side
    21,542.42x = 360,720,489.20
  5. Step 5: Solve for x
    x = 360,720,489.20/21,542.42
  6. Step 6: Final answer
    x = 16,744.66

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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.