Home / 31,327.88-43,232.49-17,180.78

Finding the Fourth Proportional to 31,327.88, 43,232.49 and 17,180.78

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Solution

The fourth proportional to 31,327.88, 43,232.49 and 17,180.78 is: 23,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,327.88 : 43,232.49 = 17,180.78 : x
  2. Step 2: Convert to fraction form
    31,327.88/43,232.49 = 17,180.78/x
  3. Step 3: Cross multiply
    31,327.88x = 43,232.49 × 17,180.78
  4. Step 4: Simplify right side
    31,327.88x = 742,767,683.38
  5. Step 5: Solve for x
    x = 742,767,683.38/31,327.88
  6. Step 6: Final answer
    x = 23,709.48

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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.