Home / 31,861.26-47,751.01-13,154.45

Finding the Fourth Proportional to 31,861.26, 47,751.01 and 13,154.45

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Solution

The fourth proportional to 31,861.26, 47,751.01 and 13,154.45 is: 19,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.26 : 47,751.01 = 13,154.45 : x
  2. Step 2: Convert to fraction form
    31,861.26/47,751.01 = 13,154.45/x
  3. Step 3: Cross multiply
    31,861.26x = 47,751.01 × 13,154.45
  4. Step 4: Simplify right side
    31,861.26x = 628,138,001.85
  5. Step 5: Solve for x
    x = 628,138,001.85/31,861.26
  6. Step 6: Final answer
    x = 19,714.79

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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.