Home / 21,920.76-32,871.42-15,350.04

Finding the Fourth Proportional to 21,920.76, 32,871.42 and 15,350.04

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Solution

The fourth proportional to 21,920.76, 32,871.42 and 15,350.04 is: 23,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920.76 : 32,871.42 = 15,350.04 : x
  2. Step 2: Convert to fraction form
    21,920.76/32,871.42 = 15,350.04/x
  3. Step 3: Cross multiply
    21,920.76x = 32,871.42 × 15,350.04
  4. Step 4: Simplify right side
    21,920.76x = 504,577,611.86
  5. Step 5: Solve for x
    x = 504,577,611.86/21,920.76
  6. Step 6: Final answer
    x = 23,018.25

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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.