Home / 31,850.15-47,776.43-11,864.69

Finding the Fourth Proportional to 31,850.15, 47,776.43 and 11,864.69

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Solution

The fourth proportional to 31,850.15, 47,776.43 and 11,864.69 is: 17,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,850.15 : 47,776.43 = 11,864.69 : x
  2. Step 2: Convert to fraction form
    31,850.15/47,776.43 = 11,864.69/x
  3. Step 3: Cross multiply
    31,850.15x = 47,776.43 × 11,864.69
  4. Step 4: Simplify right side
    31,850.15x = 566,852,233.05
  5. Step 5: Solve for x
    x = 566,852,233.05/31,850.15
  6. Step 6: Final answer
    x = 17,797.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.