Home / 31,339.05-43,247.55-17,191.90

Finding the Fourth Proportional to 31,339.05, 43,247.55 and 17,191.90

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Solution

The fourth proportional to 31,339.05, 43,247.55 and 17,191.90 is: 23,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.05 : 43,247.55 = 17,191.90 : x
  2. Step 2: Convert to fraction form
    31,339.05/43,247.55 = 17,191.90/x
  3. Step 3: Cross multiply
    31,339.05x = 43,247.55 × 17,191.90
  4. Step 4: Simplify right side
    31,339.05x = 743,507,285.05
  5. Step 5: Solve for x
    x = 743,507,285.05/31,339.05
  6. Step 6: Final answer
    x = 23,724.63

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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.