Home / 31,270.56-43,157.52-20,124.96

Finding the Fourth Proportional to 31,270.56, 43,157.52 and 20,124.96

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Solution

The fourth proportional to 31,270.56, 43,157.52 and 20,124.96 is: 27,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.56 : 43,157.52 = 20,124.96 : x
  2. Step 2: Convert to fraction form
    31,270.56/43,157.52 = 20,124.96/x
  3. Step 3: Cross multiply
    31,270.56x = 43,157.52 × 20,124.96
  4. Step 4: Simplify right side
    31,270.56x = 868,543,363.70
  5. Step 5: Solve for x
    x = 868,543,363.70/31,270.56
  6. Step 6: Final answer
    x = 27,775.11

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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.