Home / 21,184.20-31,766.70-8,032.20

Finding the Fourth Proportional to 21,184.20, 31,766.70 and 8,032.20

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Solution

The fourth proportional to 21,184.20, 31,766.70 and 8,032.20 is: 12,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.20 : 31,766.70 = 8,032.20 : x
  2. Step 2: Convert to fraction form
    21,184.20/31,766.70 = 8,032.20/x
  3. Step 3: Cross multiply
    21,184.20x = 31,766.70 × 8,032.20
  4. Step 4: Simplify right side
    21,184.20x = 255,156,487.74
  5. Step 5: Solve for x
    x = 255,156,487.74/21,184.20
  6. Step 6: Final answer
    x = 12,044.66

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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.