Home / 31,523.65-43,490.48-20,191.34

Finding the Fourth Proportional to 31,523.65, 43,490.48 and 20,191.34

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Solution

The fourth proportional to 31,523.65, 43,490.48 and 20,191.34 is: 27,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.65 : 43,490.48 = 20,191.34 : x
  2. Step 2: Convert to fraction form
    31,523.65/43,490.48 = 20,191.34/x
  3. Step 3: Cross multiply
    31,523.65x = 43,490.48 × 20,191.34
  4. Step 4: Simplify right side
    31,523.65x = 878,131,076.21
  5. Step 5: Solve for x
    x = 878,131,076.21/31,523.65
  6. Step 6: Final answer
    x = 27,856.26

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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.