Home / 31,391.86-43,321.38-17,245.24

Finding the Fourth Proportional to 31,391.86, 43,321.38 and 17,245.24

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Solution

The fourth proportional to 31,391.86, 43,321.38 and 17,245.24 is: 23,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.86 : 43,321.38 = 17,245.24 : x
  2. Step 2: Convert to fraction form
    31,391.86/43,321.38 = 17,245.24/x
  3. Step 3: Cross multiply
    31,391.86x = 43,321.38 × 17,245.24
  4. Step 4: Simplify right side
    31,391.86x = 747,087,595.23
  5. Step 5: Solve for x
    x = 747,087,595.23/31,391.86
  6. Step 6: Final answer
    x = 23,798.77

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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.