Home / 26,869.18-40,242.30-12,839.07

Finding the Fourth Proportional to 26,869.18, 40,242.30 and 12,839.07

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Solution

The fourth proportional to 26,869.18, 40,242.30 and 12,839.07 is: 19,229.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,869.18 : 40,242.30 = 12,839.07 : x
  2. Step 2: Convert to fraction form
    26,869.18/40,242.30 = 12,839.07/x
  3. Step 3: Cross multiply
    26,869.18x = 40,242.30 × 12,839.07
  4. Step 4: Simplify right side
    26,869.18x = 516,673,507.61
  5. Step 5: Solve for x
    x = 516,673,507.61/26,869.18
  6. Step 6: Final answer
    x = 19,229.23

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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.