Home / 31,874.52-47,811.36-14,331.96

Finding the Fourth Proportional to 31,874.52, 47,811.36 and 14,331.96

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Solution

The fourth proportional to 31,874.52, 47,811.36 and 14,331.96 is: 21,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,874.52 : 47,811.36 = 14,331.96 : x
  2. Step 2: Convert to fraction form
    31,874.52/47,811.36 = 14,331.96/x
  3. Step 3: Cross multiply
    31,874.52x = 47,811.36 × 14,331.96
  4. Step 4: Simplify right side
    31,874.52x = 685,230,499.07
  5. Step 5: Solve for x
    x = 685,230,499.07/31,874.52
  6. Step 6: Final answer
    x = 21,497.75

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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.