Home / 26,553.20-39,780.36-18,114.80

Finding the Fourth Proportional to 26,553.20, 39,780.36 and 18,114.80

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Solution

The fourth proportional to 26,553.20, 39,780.36 and 18,114.80 is: 27,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,553.20 : 39,780.36 = 18,114.80 : x
  2. Step 2: Convert to fraction form
    26,553.20/39,780.36 = 18,114.80/x
  3. Step 3: Cross multiply
    26,553.20x = 39,780.36 × 18,114.80
  4. Step 4: Simplify right side
    26,553.20x = 720,613,265.33
  5. Step 5: Solve for x
    x = 720,613,265.33/26,553.20
  6. Step 6: Final answer
    x = 27,138.47

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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.