Home / 31,487.11-43,451.85-17,339.65

Finding the Fourth Proportional to 31,487.11, 43,451.85 and 17,339.65

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Solution

The fourth proportional to 31,487.11, 43,451.85 and 17,339.65 is: 23,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.11 : 43,451.85 = 17,339.65 : x
  2. Step 2: Convert to fraction form
    31,487.11/43,451.85 = 17,339.65/x
  3. Step 3: Cross multiply
    31,487.11x = 43,451.85 × 17,339.65
  4. Step 4: Simplify right side
    31,487.11x = 753,439,870.85
  5. Step 5: Solve for x
    x = 753,439,870.85/31,487.11
  6. Step 6: Final answer
    x = 23,928.52

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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.