Home / 36,019.40-54,061.10-21,209.80

Finding the Fourth Proportional to 36,019.40, 54,061.10 and 21,209.80

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Solution

The fourth proportional to 36,019.40, 54,061.10 and 21,209.80 is: 31,833.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,019.40 : 54,061.10 = 21,209.80 : x
  2. Step 2: Convert to fraction form
    36,019.40/54,061.10 = 21,209.80/x
  3. Step 3: Cross multiply
    36,019.40x = 54,061.10 × 21,209.80
  4. Step 4: Simplify right side
    36,019.40x = 1,146,625,118.78
  5. Step 5: Solve for x
    x = 1,146,625,118.78/36,019.40
  6. Step 6: Final answer
    x = 31,833.54

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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.