Home / 31,372.74-47,042.91-11,647.62

Finding the Fourth Proportional to 31,372.74, 47,042.91 and 11,647.62

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Solution

The fourth proportional to 31,372.74, 47,042.91 and 11,647.62 is: 17,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.74 : 47,042.91 = 11,647.62 : x
  2. Step 2: Convert to fraction form
    31,372.74/47,042.91 = 11,647.62/x
  3. Step 3: Cross multiply
    31,372.74x = 47,042.91 × 11,647.62
  4. Step 4: Simplify right side
    31,372.74x = 547,937,939.37
  5. Step 5: Solve for x
    x = 547,937,939.37/31,372.74
  6. Step 6: Final answer
    x = 17,465.42

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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.