Home / 31,227.15-43,095.05-18,487.65

Finding the Fourth Proportional to 31,227.15, 43,095.05 and 18,487.65

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Solution

The fourth proportional to 31,227.15, 43,095.05 and 18,487.65 is: 25,513.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,227.15 : 43,095.05 = 18,487.65 : x
  2. Step 2: Convert to fraction form
    31,227.15/43,095.05 = 18,487.65/x
  3. Step 3: Cross multiply
    31,227.15x = 43,095.05 × 18,487.65
  4. Step 4: Simplify right side
    31,227.15x = 796,726,201.13
  5. Step 5: Solve for x
    x = 796,726,201.13/31,227.15
  6. Step 6: Final answer
    x = 25,513.89

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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.