Home / 31,711.56-43,770.96-19,137.12

Finding the Fourth Proportional to 31,711.56, 43,770.96 and 19,137.12

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Solution

The fourth proportional to 31,711.56, 43,770.96 and 19,137.12 is: 26,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.56 : 43,770.96 = 19,137.12 : x
  2. Step 2: Convert to fraction form
    31,711.56/43,770.96 = 19,137.12/x
  3. Step 3: Cross multiply
    31,711.56x = 43,770.96 × 19,137.12
  4. Step 4: Simplify right side
    31,711.56x = 837,650,114.04
  5. Step 5: Solve for x
    x = 837,650,114.04/31,711.56
  6. Step 6: Final answer
    x = 26,414.66

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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.