Home / 31,928.88-47,896.21-12,207.61

Finding the Fourth Proportional to 31,928.88, 47,896.21 and 12,207.61

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Solution

The fourth proportional to 31,928.88, 47,896.21 and 12,207.61 is: 18,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,928.88 : 47,896.21 = 12,207.61 : x
  2. Step 2: Convert to fraction form
    31,928.88/47,896.21 = 12,207.61/x
  3. Step 3: Cross multiply
    31,928.88x = 47,896.21 × 12,207.61
  4. Step 4: Simplify right side
    31,928.88x = 584,698,327.29
  5. Step 5: Solve for x
    x = 584,698,327.29/31,928.88
  6. Step 6: Final answer
    x = 18,312.52

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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.