Home / 31,812.72-43,900.20-17,666.52

Finding the Fourth Proportional to 31,812.72, 43,900.20 and 17,666.52

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Solution

The fourth proportional to 31,812.72, 43,900.20 and 17,666.52 is: 24,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.72 : 43,900.20 = 17,666.52 : x
  2. Step 2: Convert to fraction form
    31,812.72/43,900.20 = 17,666.52/x
  3. Step 3: Cross multiply
    31,812.72x = 43,900.20 × 17,666.52
  4. Step 4: Simplify right side
    31,812.72x = 775,563,761.30
  5. Step 5: Solve for x
    x = 775,563,761.30/31,812.72
  6. Step 6: Final answer
    x = 24,379.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.