Home / 20,672.79-31,004.46-5,881.38

Finding the Fourth Proportional to 20,672.79, 31,004.46 and 5,881.38

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Solution

The fourth proportional to 20,672.79, 31,004.46 and 5,881.38 is: 8,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.79 : 31,004.46 = 5,881.38 : x
  2. Step 2: Convert to fraction form
    20,672.79/31,004.46 = 5,881.38/x
  3. Step 3: Cross multiply
    20,672.79x = 31,004.46 × 5,881.38
  4. Step 4: Simplify right side
    20,672.79x = 182,349,010.95
  5. Step 5: Solve for x
    x = 182,349,010.95/20,672.79
  6. Step 6: Final answer
    x = 8,820.73

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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.