Home / 31,836.28-47,763.96-12,851.14

Finding the Fourth Proportional to 31,836.28, 47,763.96 and 12,851.14

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Solution

The fourth proportional to 31,836.28, 47,763.96 and 12,851.14 is: 19,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.28 : 47,763.96 = 12,851.14 : x
  2. Step 2: Convert to fraction form
    31,836.28/47,763.96 = 12,851.14/x
  3. Step 3: Cross multiply
    31,836.28x = 47,763.96 × 12,851.14
  4. Step 4: Simplify right side
    31,836.28x = 613,821,336.91
  5. Step 5: Solve for x
    x = 613,821,336.91/31,836.28
  6. Step 6: Final answer
    x = 19,280.56

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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.