Home / 31,332.04-43,230.18-18,747.88

Finding the Fourth Proportional to 31,332.04, 43,230.18 and 18,747.88

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Solution

The fourth proportional to 31,332.04, 43,230.18 and 18,747.88 is: 25,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,332.04 : 43,230.18 = 18,747.88 : x
  2. Step 2: Convert to fraction form
    31,332.04/43,230.18 = 18,747.88/x
  3. Step 3: Cross multiply
    31,332.04x = 43,230.18 × 18,747.88
  4. Step 4: Simplify right side
    31,332.04x = 810,474,227.02
  5. Step 5: Solve for x
    x = 810,474,227.02/31,332.04
  6. Step 6: Final answer
    x = 25,867.27

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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.