Home / 43,814.30-65,721.45-15,747.80

Finding the Fourth Proportional to 43,814.30, 65,721.45 and 15,747.80

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Solution

The fourth proportional to 43,814.30, 65,721.45 and 15,747.80 is: 23,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,814.30 : 65,721.45 = 15,747.80 : x
  2. Step 2: Convert to fraction form
    43,814.30/65,721.45 = 15,747.80/x
  3. Step 3: Cross multiply
    43,814.30x = 65,721.45 × 15,747.80
  4. Step 4: Simplify right side
    43,814.30x = 1,034,968,250.31
  5. Step 5: Solve for x
    x = 1,034,968,250.31/43,814.30
  6. Step 6: Final answer
    x = 23,621.70

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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.