Home / 31,885.55-47,837.66-13,166.65

Finding the Fourth Proportional to 31,885.55, 47,837.66 and 13,166.65

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Solution

The fourth proportional to 31,885.55, 47,837.66 and 13,166.65 is: 19,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885.55 : 47,837.66 = 13,166.65 : x
  2. Step 2: Convert to fraction form
    31,885.55/47,837.66 = 13,166.65/x
  3. Step 3: Cross multiply
    31,885.55x = 47,837.66 × 13,166.65
  4. Step 4: Simplify right side
    31,885.55x = 629,861,831.10
  5. Step 5: Solve for x
    x = 629,861,831.10/31,885.55
  6. Step 6: Final answer
    x = 19,753.83

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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.