Home / 29,120.70-43,615.41-20,394.57

Finding the Fourth Proportional to 29,120.70, 43,615.41 and 20,394.57

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Solution

The fourth proportional to 29,120.70, 43,615.41 and 20,394.57 is: 30,545.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,120.70 : 43,615.41 = 20,394.57 : x
  2. Step 2: Convert to fraction form
    29,120.70/43,615.41 = 20,394.57/x
  3. Step 3: Cross multiply
    29,120.70x = 43,615.41 × 20,394.57
  4. Step 4: Simplify right side
    29,120.70x = 889,517,532.32
  5. Step 5: Solve for x
    x = 889,517,532.32/29,120.70
  6. Step 6: Final answer
    x = 30,545.88

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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.