Home / 31,288.80-43,179.65-17,141.65

Finding the Fourth Proportional to 31,288.80, 43,179.65 and 17,141.65

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Solution

The fourth proportional to 31,288.80, 43,179.65 and 17,141.65 is: 23,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.80 : 43,179.65 = 17,141.65 : x
  2. Step 2: Convert to fraction form
    31,288.80/43,179.65 = 17,141.65/x
  3. Step 3: Cross multiply
    31,288.80x = 43,179.65 × 17,141.65
  4. Step 4: Simplify right side
    31,288.80x = 740,170,318.05
  5. Step 5: Solve for x
    x = 740,170,318.05/31,288.80
  6. Step 6: Final answer
    x = 23,656.08

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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.