Home / 20,562.22-28,375.95-12,178.18

Finding the Fourth Proportional to 20,562.22, 28,375.95 and 12,178.18

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Solution

The fourth proportional to 20,562.22, 28,375.95 and 12,178.18 is: 16,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.22 : 28,375.95 = 12,178.18 : x
  2. Step 2: Convert to fraction form
    20,562.22/28,375.95 = 12,178.18/x
  3. Step 3: Cross multiply
    20,562.22x = 28,375.95 × 12,178.18
  4. Step 4: Simplify right side
    20,562.22x = 345,567,426.77
  5. Step 5: Solve for x
    x = 345,567,426.77/20,562.22
  6. Step 6: Final answer
    x = 16,805.94

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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.