Home / 31,073.32-43,179.07-30,753.64

Finding the Fourth Proportional to 31,073.32, 43,179.07 and 30,753.64

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Solution

The fourth proportional to 31,073.32, 43,179.07 and 30,753.64 is: 42,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,073.32 : 43,179.07 = 30,753.64 : x
  2. Step 2: Convert to fraction form
    31,073.32/43,179.07 = 30,753.64/x
  3. Step 3: Cross multiply
    31,073.32x = 43,179.07 × 30,753.64
  4. Step 4: Simplify right side
    31,073.32x = 1,327,913,574.31
  5. Step 5: Solve for x
    x = 1,327,913,574.31/31,073.32
  6. Step 6: Final answer
    x = 42,734.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.