Home / 31,356.15-43,269.96-17,928.87

Finding the Fourth Proportional to 31,356.15, 43,269.96 and 17,928.87

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Solution

The fourth proportional to 31,356.15, 43,269.96 and 17,928.87 is: 24,740.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.15 : 43,269.96 = 17,928.87 : x
  2. Step 2: Convert to fraction form
    31,356.15/43,269.96 = 17,928.87/x
  3. Step 3: Cross multiply
    31,356.15x = 43,269.96 × 17,928.87
  4. Step 4: Simplify right side
    31,356.15x = 775,781,487.75
  5. Step 5: Solve for x
    x = 775,781,487.75/31,356.15
  6. Step 6: Final answer
    x = 24,740.97

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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.