Home / 31,811.20-43,895.32-17,661.31

Finding the Fourth Proportional to 31,811.20, 43,895.32 and 17,661.31

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Solution

The fourth proportional to 31,811.20, 43,895.32 and 17,661.31 is: 24,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.20 : 43,895.32 = 17,661.31 : x
  2. Step 2: Convert to fraction form
    31,811.20/43,895.32 = 17,661.31/x
  3. Step 3: Cross multiply
    31,811.20x = 43,895.32 × 17,661.31
  4. Step 4: Simplify right side
    31,811.20x = 775,248,854.07
  5. Step 5: Solve for x
    x = 775,248,854.07/31,811.20
  6. Step 6: Final answer
    x = 24,370.31

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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.