Home / 31,449.09-47,173.89-11,472.90

Finding the Fourth Proportional to 31,449.09, 47,173.89 and 11,472.90

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Solution

The fourth proportional to 31,449.09, 47,173.89 and 11,472.90 is: 17,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.09 : 47,173.89 = 11,472.90 : x
  2. Step 2: Convert to fraction form
    31,449.09/47,173.89 = 11,472.90/x
  3. Step 3: Cross multiply
    31,449.09x = 47,173.89 × 11,472.90
  4. Step 4: Simplify right side
    31,449.09x = 541,221,322.58
  5. Step 5: Solve for x
    x = 541,221,322.58/31,449.09
  6. Step 6: Final answer
    x = 17,209.44

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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.