Home / 31,890.15-47,814.71-15,249.83

Finding the Fourth Proportional to 31,890.15, 47,814.71 and 15,249.83

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Solution

The fourth proportional to 31,890.15, 47,814.71 and 15,249.83 is: 22,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.15 : 47,814.71 = 15,249.83 : x
  2. Step 2: Convert to fraction form
    31,890.15/47,814.71 = 15,249.83/x
  3. Step 3: Cross multiply
    31,890.15x = 47,814.71 × 15,249.83
  4. Step 4: Simplify right side
    31,890.15x = 729,165,883.68
  5. Step 5: Solve for x
    x = 729,165,883.68/31,890.15
  6. Step 6: Final answer
    x = 22,864.92

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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.