Home / 26,812.10-40,218.15-18,517.70

Finding the Fourth Proportional to 26,812.10, 40,218.15 and 18,517.70

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Solution

The fourth proportional to 26,812.10, 40,218.15 and 18,517.70 is: 27,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,812.10 : 40,218.15 = 18,517.70 : x
  2. Step 2: Convert to fraction form
    26,812.10/40,218.15 = 18,517.70/x
  3. Step 3: Cross multiply
    26,812.10x = 40,218.15 × 18,517.70
  4. Step 4: Simplify right side
    26,812.10x = 744,747,636.26
  5. Step 5: Solve for x
    x = 744,747,636.26/26,812.10
  6. Step 6: Final answer
    x = 27,776.55

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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.