Home / 31,909.80-47,867.98-12,204.94

Finding the Fourth Proportional to 31,909.80, 47,867.98 and 12,204.94

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Solution

The fourth proportional to 31,909.80, 47,867.98 and 12,204.94 is: 18,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.80 : 47,867.98 = 12,204.94 : x
  2. Step 2: Convert to fraction form
    31,909.80/47,867.98 = 12,204.94/x
  3. Step 3: Cross multiply
    31,909.80x = 47,867.98 × 12,204.94
  4. Step 4: Simplify right side
    31,909.80x = 584,225,823.82
  5. Step 5: Solve for x
    x = 584,225,823.82/31,909.80
  6. Step 6: Final answer
    x = 18,308.66

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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.