Home / 36,087.73-54,138.38-13,899.20

Finding the Fourth Proportional to 36,087.73, 54,138.38 and 13,899.20

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Solution

The fourth proportional to 36,087.73, 54,138.38 and 13,899.20 is: 20,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,087.73 : 54,138.38 = 13,899.20 : x
  2. Step 2: Convert to fraction form
    36,087.73/54,138.38 = 13,899.20/x
  3. Step 3: Cross multiply
    36,087.73x = 54,138.38 × 13,899.20
  4. Step 4: Simplify right side
    36,087.73x = 752,479,831.11
  5. Step 5: Solve for x
    x = 752,479,831.11/36,087.73
  6. Step 6: Final answer
    x = 20,851.41

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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.