Home / 31,891.08-47,818.62-15,255.12

Finding the Fourth Proportional to 31,891.08, 47,818.62 and 15,255.12

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Solution

The fourth proportional to 31,891.08, 47,818.62 and 15,255.12 is: 22,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,891.08 : 47,818.62 = 15,255.12 : x
  2. Step 2: Convert to fraction form
    31,891.08/47,818.62 = 15,255.12/x
  3. Step 3: Cross multiply
    31,891.08x = 47,818.62 × 15,255.12
  4. Step 4: Simplify right side
    31,891.08x = 729,478,786.33
  5. Step 5: Solve for x
    x = 729,478,786.33/31,891.08
  6. Step 6: Final answer
    x = 22,874.07

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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.