Home / 31,909.22-47,853.05-11,914.57

Finding the Fourth Proportional to 31,909.22, 47,853.05 and 11,914.57

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Solution

The fourth proportional to 31,909.22, 47,853.05 and 11,914.57 is: 17,867.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.22 : 47,853.05 = 11,914.57 : x
  2. Step 2: Convert to fraction form
    31,909.22/47,853.05 = 11,914.57/x
  3. Step 3: Cross multiply
    31,909.22x = 47,853.05 × 11,914.57
  4. Step 4: Simplify right side
    31,909.22x = 570,148,215.10
  5. Step 5: Solve for x
    x = 570,148,215.10/31,909.22
  6. Step 6: Final answer
    x = 17,867.82

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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.