Home / 31,347.52-47,029.38-11,631.70

Finding the Fourth Proportional to 31,347.52, 47,029.38 and 11,631.70

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Solution

The fourth proportional to 31,347.52, 47,029.38 and 11,631.70 is: 17,450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.52 : 47,029.38 = 11,631.70 : x
  2. Step 2: Convert to fraction form
    31,347.52/47,029.38 = 11,631.70/x
  3. Step 3: Cross multiply
    31,347.52x = 47,029.38 × 11,631.70
  4. Step 4: Simplify right side
    31,347.52x = 547,031,639.35
  5. Step 5: Solve for x
    x = 547,031,639.35/31,347.52
  6. Step 6: Final answer
    x = 17,450.56

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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.