Home / 31,713.89-47,567.03-8,342.15

Finding the Fourth Proportional to 31,713.89, 47,567.03 and 8,342.15

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Solution

The fourth proportional to 31,713.89, 47,567.03 and 8,342.15 is: 12,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,713.89 : 47,567.03 = 8,342.15 : x
  2. Step 2: Convert to fraction form
    31,713.89/47,567.03 = 8,342.15/x
  3. Step 3: Cross multiply
    31,713.89x = 47,567.03 × 8,342.15
  4. Step 4: Simplify right side
    31,713.89x = 396,811,019.77
  5. Step 5: Solve for x
    x = 396,811,019.77/31,713.89
  6. Step 6: Final answer
    x = 12,512.22

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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.