Home / 29,318.10-40,456.98-18,706.56

Finding the Fourth Proportional to 29,318.10, 40,456.98 and 18,706.56

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Solution

The fourth proportional to 29,318.10, 40,456.98 and 18,706.56 is: 25,813.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318.10 : 40,456.98 = 18,706.56 : x
  2. Step 2: Convert to fraction form
    29,318.10/40,456.98 = 18,706.56/x
  3. Step 3: Cross multiply
    29,318.10x = 40,456.98 × 18,706.56
  4. Step 4: Simplify right side
    29,318.10x = 756,810,923.79
  5. Step 5: Solve for x
    x = 756,810,923.79/29,318.10
  6. Step 6: Final answer
    x = 25,813.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.