Home / 31,380.78-47,077.65-9,194.88

Finding the Fourth Proportional to 31,380.78, 47,077.65 and 9,194.88

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Solution

The fourth proportional to 31,380.78, 47,077.65 and 9,194.88 is: 13,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.78 : 47,077.65 = 9,194.88 : x
  2. Step 2: Convert to fraction form
    31,380.78/47,077.65 = 9,194.88/x
  3. Step 3: Cross multiply
    31,380.78x = 47,077.65 × 9,194.88
  4. Step 4: Simplify right side
    31,380.78x = 432,873,342.43
  5. Step 5: Solve for x
    x = 432,873,342.43/31,380.78
  6. Step 6: Final answer
    x = 13,794.22

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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.