Home / 31,660.86-43,694.16-18,235.66

Finding the Fourth Proportional to 31,660.86, 43,694.16 and 18,235.66

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Solution

The fourth proportional to 31,660.86, 43,694.16 and 18,235.66 is: 25,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.86 : 43,694.16 = 18,235.66 : x
  2. Step 2: Convert to fraction form
    31,660.86/43,694.16 = 18,235.66/x
  3. Step 3: Cross multiply
    31,660.86x = 43,694.16 × 18,235.66
  4. Step 4: Simplify right side
    31,660.86x = 796,791,845.75
  5. Step 5: Solve for x
    x = 796,791,845.75/31,660.86
  6. Step 6: Final answer
    x = 25,166.46

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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.