Home / 31,553.12-43,543.78-17,405.66

Finding the Fourth Proportional to 31,553.12, 43,543.78 and 17,405.66

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Solution

The fourth proportional to 31,553.12, 43,543.78 and 17,405.66 is: 24,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.12 : 43,543.78 = 17,405.66 : x
  2. Step 2: Convert to fraction form
    31,553.12/43,543.78 = 17,405.66/x
  3. Step 3: Cross multiply
    31,553.12x = 43,543.78 × 17,405.66
  4. Step 4: Simplify right side
    31,553.12x = 757,908,229.79
  5. Step 5: Solve for x
    x = 757,908,229.79/31,553.12
  6. Step 6: Final answer
    x = 24,020.07

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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.