Home / 34,429.20-51,513.36-20,396.76

Finding the Fourth Proportional to 34,429.20, 51,513.36 and 20,396.76

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Solution

The fourth proportional to 34,429.20, 51,513.36 and 20,396.76 is: 30,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,429.20 : 51,513.36 = 20,396.76 : x
  2. Step 2: Convert to fraction form
    34,429.20/51,513.36 = 20,396.76/x
  3. Step 3: Cross multiply
    34,429.20x = 51,513.36 × 20,396.76
  4. Step 4: Simplify right side
    34,429.20x = 1,050,705,640.71
  5. Step 5: Solve for x
    x = 1,050,705,640.71/34,429.20
  6. Step 6: Final answer
    x = 30,517.86

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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.