Home / 34,286.40-51,397.20-20,257.20

Finding the Fourth Proportional to 34,286.40, 51,397.20 and 20,257.20

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Solution

The fourth proportional to 34,286.40, 51,397.20 and 20,257.20 is: 30,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,286.40 : 51,397.20 = 20,257.20 : x
  2. Step 2: Convert to fraction form
    34,286.40/51,397.20 = 20,257.20/x
  3. Step 3: Cross multiply
    34,286.40x = 51,397.20 × 20,257.20
  4. Step 4: Simplify right side
    34,286.40x = 1,041,163,359.84
  5. Step 5: Solve for x
    x = 1,041,163,359.84/34,286.40
  6. Step 6: Final answer
    x = 30,366.66

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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.