Home / 21,821.33-32,734.11-8,670.76

Finding the Fourth Proportional to 21,821.33, 32,734.11 and 8,670.76

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Solution

The fourth proportional to 21,821.33, 32,734.11 and 8,670.76 is: 13,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.33 : 32,734.11 = 8,670.76 : x
  2. Step 2: Convert to fraction form
    21,821.33/32,734.11 = 8,670.76/x
  3. Step 3: Cross multiply
    21,821.33x = 32,734.11 × 8,670.76
  4. Step 4: Simplify right side
    21,821.33x = 283,829,562.30
  5. Step 5: Solve for x
    x = 283,829,562.30/21,821.33
  6. Step 6: Final answer
    x = 13,006.98

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1.5x scale

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.