Home / 26,998.17-40,503.20-8,280.78

Finding the Fourth Proportional to 26,998.17, 40,503.20 and 8,280.78

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Solution

The fourth proportional to 26,998.17, 40,503.20 and 8,280.78 is: 12,422.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.17 : 40,503.20 = 8,280.78 : x
  2. Step 2: Convert to fraction form
    26,998.17/40,503.20 = 8,280.78/x
  3. Step 3: Cross multiply
    26,998.17x = 40,503.20 × 8,280.78
  4. Step 4: Simplify right side
    26,998.17x = 335,398,047.09
  5. Step 5: Solve for x
    x = 335,398,047.09/26,998.17
  6. Step 6: Final answer
    x = 12,422.99

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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.