Home / 31,190.95-43,039.15-17,761.56

Finding the Fourth Proportional to 31,190.95, 43,039.15 and 17,761.56

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Solution

The fourth proportional to 31,190.95, 43,039.15 and 17,761.56 is: 24,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.95 : 43,039.15 = 17,761.56 : x
  2. Step 2: Convert to fraction form
    31,190.95/43,039.15 = 17,761.56/x
  3. Step 3: Cross multiply
    31,190.95x = 43,039.15 × 17,761.56
  4. Step 4: Simplify right side
    31,190.95x = 764,442,445.07
  5. Step 5: Solve for x
    x = 764,442,445.07/31,190.95
  6. Step 6: Final answer
    x = 24,508.47

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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.