Home / 31,278.46-43,153.55-17,840.05

Finding the Fourth Proportional to 31,278.46, 43,153.55 and 17,840.05

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Solution

The fourth proportional to 31,278.46, 43,153.55 and 17,840.05 is: 24,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.46 : 43,153.55 = 17,840.05 : x
  2. Step 2: Convert to fraction form
    31,278.46/43,153.55 = 17,840.05/x
  3. Step 3: Cross multiply
    31,278.46x = 43,153.55 × 17,840.05
  4. Step 4: Simplify right side
    31,278.46x = 769,861,489.68
  5. Step 5: Solve for x
    x = 769,861,489.68/31,278.46
  6. Step 6: Final answer
    x = 24,613.15

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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.