Home / 31,723.08-47,550.24-20,637.66

Finding the Fourth Proportional to 31,723.08, 47,550.24 and 20,637.66

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Solution

The fourth proportional to 31,723.08, 47,550.24 and 20,637.66 is: 30,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.08 : 47,550.24 = 20,637.66 : x
  2. Step 2: Convert to fraction form
    31,723.08/47,550.24 = 20,637.66/x
  3. Step 3: Cross multiply
    31,723.08x = 47,550.24 × 20,637.66
  4. Step 4: Simplify right side
    31,723.08x = 981,325,686.04
  5. Step 5: Solve for x
    x = 981,325,686.04/31,723.08
  6. Step 6: Final answer
    x = 30,934.12

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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.