Home / 22,166.10-30,589.20-12,734.66

Finding the Fourth Proportional to 22,166.10, 30,589.20 and 12,734.66

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Solution

The fourth proportional to 22,166.10, 30,589.20 and 12,734.66 is: 17,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,166.10 : 30,589.20 = 12,734.66 : x
  2. Step 2: Convert to fraction form
    22,166.10/30,589.20 = 12,734.66/x
  3. Step 3: Cross multiply
    22,166.10x = 30,589.20 × 12,734.66
  4. Step 4: Simplify right side
    22,166.10x = 389,543,061.67
  5. Step 5: Solve for x
    x = 389,543,061.67/22,166.10
  6. Step 6: Final answer
    x = 17,573.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.