Home / 29,356.38-40,511.80-16,781.40

Finding the Fourth Proportional to 29,356.38, 40,511.80 and 16,781.40

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Solution

The fourth proportional to 29,356.38, 40,511.80 and 16,781.40 is: 23,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,356.38 : 40,511.80 = 16,781.40 : x
  2. Step 2: Convert to fraction form
    29,356.38/40,511.80 = 16,781.40/x
  3. Step 3: Cross multiply
    29,356.38x = 40,511.80 × 16,781.40
  4. Step 4: Simplify right side
    29,356.38x = 679,844,517.96
  5. Step 5: Solve for x
    x = 679,844,517.96/29,356.38
  6. Step 6: Final answer
    x = 23,158.33

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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.