Home / 21,306.96-31,960.53-5,724.54

Finding the Fourth Proportional to 21,306.96, 31,960.53 and 5,724.54

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Solution

The fourth proportional to 21,306.96, 31,960.53 and 5,724.54 is: 8,586.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.96 : 31,960.53 = 5,724.54 : x
  2. Step 2: Convert to fraction form
    21,306.96/31,960.53 = 5,724.54/x
  3. Step 3: Cross multiply
    21,306.96x = 31,960.53 × 5,724.54
  4. Step 4: Simplify right side
    21,306.96x = 182,959,332.41
  5. Step 5: Solve for x
    x = 182,959,332.41/21,306.96
  6. Step 6: Final answer
    x = 8,586.83

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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.