Home / 31,472.00-47,208.11-12,752.39

Finding the Fourth Proportional to 31,472.00, 47,208.11 and 12,752.39

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Solution

The fourth proportional to 31,472.00, 47,208.11 and 12,752.39 is: 19,128.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,472.00 : 47,208.11 = 12,752.39 : x
  2. Step 2: Convert to fraction form
    31,472.00/47,208.11 = 12,752.39/x
  3. Step 3: Cross multiply
    31,472.00x = 47,208.11 × 12,752.39
  4. Step 4: Simplify right side
    31,472.00x = 602,015,930.08
  5. Step 5: Solve for x
    x = 602,015,930.08/31,472.00
  6. Step 6: Final answer
    x = 19,128.62

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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.