Home / 29,278.06-40,403.85-16,531.76

Finding the Fourth Proportional to 29,278.06, 40,403.85 and 16,531.76

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Solution

The fourth proportional to 29,278.06, 40,403.85 and 16,531.76 is: 22,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.06 : 40,403.85 = 16,531.76 : x
  2. Step 2: Convert to fraction form
    29,278.06/40,403.85 = 16,531.76/x
  3. Step 3: Cross multiply
    29,278.06x = 40,403.85 × 16,531.76
  4. Step 4: Simplify right side
    29,278.06x = 667,946,790.29
  5. Step 5: Solve for x
    x = 667,946,790.29/29,278.06
  6. Step 6: Final answer
    x = 22,813.90

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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.