Home / 31,440.56-43,386.04-18,008.73

Finding the Fourth Proportional to 31,440.56, 43,386.04 and 18,008.73

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Solution

The fourth proportional to 31,440.56, 43,386.04 and 18,008.73 is: 24,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.56 : 43,386.04 = 18,008.73 : x
  2. Step 2: Convert to fraction form
    31,440.56/43,386.04 = 18,008.73/x
  3. Step 3: Cross multiply
    31,440.56x = 43,386.04 × 18,008.73
  4. Step 4: Simplify right side
    31,440.56x = 781,327,543.57
  5. Step 5: Solve for x
    x = 781,327,543.57/31,440.56
  6. Step 6: Final answer
    x = 24,850.94

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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.