Home / 31,193.12-43,040.56-18,619.04

Finding the Fourth Proportional to 31,193.12, 43,040.56 and 18,619.04

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Solution

The fourth proportional to 31,193.12, 43,040.56 and 18,619.04 is: 25,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.12 : 43,040.56 = 18,619.04 : x
  2. Step 2: Convert to fraction form
    31,193.12/43,040.56 = 18,619.04/x
  3. Step 3: Cross multiply
    31,193.12x = 43,040.56 × 18,619.04
  4. Step 4: Simplify right side
    31,193.12x = 801,373,908.26
  5. Step 5: Solve for x
    x = 801,373,908.26/31,193.12
  6. Step 6: Final answer
    x = 25,690.73

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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.