Home / 31,335.04-43,234.32-18,750.88

Finding the Fourth Proportional to 31,335.04, 43,234.32 and 18,750.88

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Solution

The fourth proportional to 31,335.04, 43,234.32 and 18,750.88 is: 25,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.04 : 43,234.32 = 18,750.88 : x
  2. Step 2: Convert to fraction form
    31,335.04/43,234.32 = 18,750.88/x
  3. Step 3: Cross multiply
    31,335.04x = 43,234.32 × 18,750.88
  4. Step 4: Simplify right side
    31,335.04x = 810,681,546.20
  5. Step 5: Solve for x
    x = 810,681,546.20/31,335.04
  6. Step 6: Final answer
    x = 25,871.41

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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.