Home / 31,549.38-43,449.56-30,860.48

Finding the Fourth Proportional to 31,549.38, 43,449.56 and 30,860.48

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Solution

The fourth proportional to 31,549.38, 43,449.56 and 30,860.48 is: 42,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,549.38 : 43,449.56 = 30,860.48 : x
  2. Step 2: Convert to fraction form
    31,549.38/43,449.56 = 30,860.48/x
  3. Step 3: Cross multiply
    31,549.38x = 43,449.56 × 30,860.48
  4. Step 4: Simplify right side
    31,549.38x = 1,340,873,905.84
  5. Step 5: Solve for x
    x = 1,340,873,905.84/31,549.38
  6. Step 6: Final answer
    x = 42,500.80

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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.