Home / 31,561.66-43,553.62-18,123.46

Finding the Fourth Proportional to 31,561.66, 43,553.62 and 18,123.46

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Solution

The fourth proportional to 31,561.66, 43,553.62 and 18,123.46 is: 25,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.66 : 43,553.62 = 18,123.46 : x
  2. Step 2: Convert to fraction form
    31,561.66/43,553.62 = 18,123.46/x
  3. Step 3: Cross multiply
    31,561.66x = 43,553.62 × 18,123.46
  4. Step 4: Simplify right side
    31,561.66x = 789,342,289.93
  5. Step 5: Solve for x
    x = 789,342,289.93/31,561.66
  6. Step 6: Final answer
    x = 25,009.53

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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.