Home / 21,497.29-32,207.80-8,989.75

Finding the Fourth Proportional to 21,497.29, 32,207.80 and 8,989.75

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Solution

The fourth proportional to 21,497.29, 32,207.80 and 8,989.75 is: 13,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.29 : 32,207.80 = 8,989.75 : x
  2. Step 2: Convert to fraction form
    21,497.29/32,207.80 = 8,989.75/x
  3. Step 3: Cross multiply
    21,497.29x = 32,207.80 × 8,989.75
  4. Step 4: Simplify right side
    21,497.29x = 289,540,070.05
  5. Step 5: Solve for x
    x = 289,540,070.05/21,497.29
  6. Step 6: Final answer
    x = 13,468.68

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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.