Home / 31,842.06-47,690.25-15,213.78

Finding the Fourth Proportional to 31,842.06, 47,690.25 and 15,213.78

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Solution

The fourth proportional to 31,842.06, 47,690.25 and 15,213.78 is: 22,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,842.06 : 47,690.25 = 15,213.78 : x
  2. Step 2: Convert to fraction form
    31,842.06/47,690.25 = 15,213.78/x
  3. Step 3: Cross multiply
    31,842.06x = 47,690.25 × 15,213.78
  4. Step 4: Simplify right side
    31,842.06x = 725,548,971.65
  5. Step 5: Solve for x
    x = 725,548,971.65/31,842.06
  6. Step 6: Final answer
    x = 22,785.87

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1.5x scale

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.