Home / 36,148.40-54,217.29-21,162.44

Finding the Fourth Proportional to 36,148.40, 54,217.29 and 21,162.44

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Solution

The fourth proportional to 36,148.40, 54,217.29 and 21,162.44 is: 31,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,148.40 : 54,217.29 = 21,162.44 : x
  2. Step 2: Convert to fraction form
    36,148.40/54,217.29 = 21,162.44/x
  3. Step 3: Cross multiply
    36,148.40x = 54,217.29 × 21,162.44
  4. Step 4: Simplify right side
    36,148.40x = 1,147,370,146.59
  5. Step 5: Solve for x
    x = 1,147,370,146.59/36,148.40
  6. Step 6: Final answer
    x = 31,740.55

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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.