Home / 26,321.80-39,489.18-18,545.80

Finding the Fourth Proportional to 26,321.80, 39,489.18 and 18,545.80

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Solution

The fourth proportional to 26,321.80, 39,489.18 and 18,545.80 is: 27,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,321.80 : 39,489.18 = 18,545.80 : x
  2. Step 2: Convert to fraction form
    26,321.80/39,489.18 = 18,545.80/x
  3. Step 3: Cross multiply
    26,321.80x = 39,489.18 × 18,545.80
  4. Step 4: Simplify right side
    26,321.80x = 732,358,434.44
  5. Step 5: Solve for x
    x = 732,358,434.44/26,321.80
  6. Step 6: Final answer
    x = 27,823.27

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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.