Home / 34,431.72-51,517.24-20,399.28

Finding the Fourth Proportional to 34,431.72, 51,517.24 and 20,399.28

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Solution

The fourth proportional to 34,431.72, 51,517.24 and 20,399.28 is: 30,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,431.72 : 51,517.24 = 20,399.28 : x
  2. Step 2: Convert to fraction form
    34,431.72/51,517.24 = 20,399.28/x
  3. Step 3: Cross multiply
    34,431.72x = 51,517.24 × 20,399.28
  4. Step 4: Simplify right side
    34,431.72x = 1,050,914,603.59
  5. Step 5: Solve for x
    x = 1,050,914,603.59/34,431.72
  6. Step 6: Final answer
    x = 30,521.70

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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.