Home / 31,391.99-43,320.98-17,245.75

Finding the Fourth Proportional to 31,391.99, 43,320.98 and 17,245.75

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Solution

The fourth proportional to 31,391.99, 43,320.98 and 17,245.75 is: 23,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.99 : 43,320.98 = 17,245.75 : x
  2. Step 2: Convert to fraction form
    31,391.99/43,320.98 = 17,245.75/x
  3. Step 3: Cross multiply
    31,391.99x = 43,320.98 × 17,245.75
  4. Step 4: Simplify right side
    31,391.99x = 747,102,790.84
  5. Step 5: Solve for x
    x = 747,102,790.84/31,391.99
  6. Step 6: Final answer
    x = 23,799.15

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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.