Home / 26,540.40-39,808.20-9,010.80

Finding the Fourth Proportional to 26,540.40, 39,808.20 and 9,010.80

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Solution

The fourth proportional to 26,540.40, 39,808.20 and 9,010.80 is: 13,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,540.40 : 39,808.20 = 9,010.80 : x
  2. Step 2: Convert to fraction form
    26,540.40/39,808.20 = 9,010.80/x
  3. Step 3: Cross multiply
    26,540.40x = 39,808.20 × 9,010.80
  4. Step 4: Simplify right side
    26,540.40x = 358,703,728.56
  5. Step 5: Solve for x
    x = 358,703,728.56/26,540.40
  6. Step 6: Final answer
    x = 13,515.39

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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.