Home / 31,947.46-47,934.40-13,231.30

Finding the Fourth Proportional to 31,947.46, 47,934.40 and 13,231.30

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Solution

The fourth proportional to 31,947.46, 47,934.40 and 13,231.30 is: 19,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,947.46 : 47,934.40 = 13,231.30 : x
  2. Step 2: Convert to fraction form
    31,947.46/47,934.40 = 13,231.30/x
  3. Step 3: Cross multiply
    31,947.46x = 47,934.40 × 13,231.30
  4. Step 4: Simplify right side
    31,947.46x = 634,234,187.05
  5. Step 5: Solve for x
    x = 634,234,187.05/31,947.46
  6. Step 6: Final answer
    x = 19,852.42

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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.