Home / 26,240.91-39,328.56-20,672.26

Finding the Fourth Proportional to 26,240.91, 39,328.56 and 20,672.26

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Solution

The fourth proportional to 26,240.91, 39,328.56 and 20,672.26 is: 30,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,240.91 : 39,328.56 = 20,672.26 : x
  2. Step 2: Convert to fraction form
    26,240.91/39,328.56 = 20,672.26/x
  3. Step 3: Cross multiply
    26,240.91x = 39,328.56 × 20,672.26
  4. Step 4: Simplify right side
    26,240.91x = 813,010,217.75
  5. Step 5: Solve for x
    x = 813,010,217.75/26,240.91
  6. Step 6: Final answer
    x = 30,982.55

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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.