Home / 34,915.20-52,351.20-20,116.80

Finding the Fourth Proportional to 34,915.20, 52,351.20 and 20,116.80

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Solution

The fourth proportional to 34,915.20, 52,351.20 and 20,116.80 is: 30,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,915.20 : 52,351.20 = 20,116.80 : x
  2. Step 2: Convert to fraction form
    34,915.20/52,351.20 = 20,116.80/x
  3. Step 3: Cross multiply
    34,915.20x = 52,351.20 × 20,116.80
  4. Step 4: Simplify right side
    34,915.20x = 1,053,138,620.16
  5. Step 5: Solve for x
    x = 1,053,138,620.16/34,915.20
  6. Step 6: Final answer
    x = 30,162.75

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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.