Home / 31,399.24-47,117.22-11,691.76

Finding the Fourth Proportional to 31,399.24, 47,117.22 and 11,691.76

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Solution

The fourth proportional to 31,399.24, 47,117.22 and 11,691.76 is: 17,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.24 : 47,117.22 = 11,691.76 : x
  2. Step 2: Convert to fraction form
    31,399.24/47,117.22 = 11,691.76/x
  3. Step 3: Cross multiply
    31,399.24x = 47,117.22 × 11,691.76
  4. Step 4: Simplify right side
    31,399.24x = 550,883,228.11
  5. Step 5: Solve for x
    x = 550,883,228.11/31,399.24
  6. Step 6: Final answer
    x = 17,544.48

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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.