Home / 31,881.52-47,821.86-14,338.96

Finding the Fourth Proportional to 31,881.52, 47,821.86 and 14,338.96

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Solution

The fourth proportional to 31,881.52, 47,821.86 and 14,338.96 is: 21,508.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.52 : 47,821.86 = 14,338.96 : x
  2. Step 2: Convert to fraction form
    31,881.52/47,821.86 = 14,338.96/x
  3. Step 3: Cross multiply
    31,881.52x = 47,821.86 × 14,338.96
  4. Step 4: Simplify right side
    31,881.52x = 685,715,737.67
  5. Step 5: Solve for x
    x = 685,715,737.67/31,881.52
  6. Step 6: Final answer
    x = 21,508.25

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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.