Home / 21,549.02-32,265.10-11,138.90

Finding the Fourth Proportional to 21,549.02, 32,265.10 and 11,138.90

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Solution

The fourth proportional to 21,549.02, 32,265.10 and 11,138.90 is: 16,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.02 : 32,265.10 = 11,138.90 : x
  2. Step 2: Convert to fraction form
    21,549.02/32,265.10 = 11,138.90/x
  3. Step 3: Cross multiply
    21,549.02x = 32,265.10 × 11,138.90
  4. Step 4: Simplify right side
    21,549.02x = 359,397,722.39
  5. Step 5: Solve for x
    x = 359,397,722.39/21,549.02
  6. Step 6: Final answer
    x = 16,678.15

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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.