Home / 31,832.24-43,923.60-18,400.91

Finding the Fourth Proportional to 31,832.24, 43,923.60 and 18,400.91

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Solution

The fourth proportional to 31,832.24, 43,923.60 and 18,400.91 is: 25,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,832.24 : 43,923.60 = 18,400.91 : x
  2. Step 2: Convert to fraction form
    31,832.24/43,923.60 = 18,400.91/x
  3. Step 3: Cross multiply
    31,832.24x = 43,923.60 × 18,400.91
  4. Step 4: Simplify right side
    31,832.24x = 808,233,990.86
  5. Step 5: Solve for x
    x = 808,233,990.86/31,832.24
  6. Step 6: Final answer
    x = 25,390.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.