Home / 26,311.40-39,469.12-8,781.24

Finding the Fourth Proportional to 26,311.40, 39,469.12 and 8,781.24

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Solution

The fourth proportional to 26,311.40, 39,469.12 and 8,781.24 is: 13,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,311.40 : 39,469.12 = 8,781.24 : x
  2. Step 2: Convert to fraction form
    26,311.40/39,469.12 = 8,781.24/x
  3. Step 3: Cross multiply
    26,311.40x = 39,469.12 × 8,781.24
  4. Step 4: Simplify right side
    26,311.40x = 346,587,815.31
  5. Step 5: Solve for x
    x = 346,587,815.31/26,311.40
  6. Step 6: Final answer
    x = 13,172.53

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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.