Home / 23,128.87-31,891.23-17,087.85

Finding the Fourth Proportional to 23,128.87, 31,891.23 and 17,087.85

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Solution

The fourth proportional to 23,128.87, 31,891.23 and 17,087.85 is: 23,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.87 : 31,891.23 = 17,087.85 : x
  2. Step 2: Convert to fraction form
    23,128.87/31,891.23 = 17,087.85/x
  3. Step 3: Cross multiply
    23,128.87x = 31,891.23 × 17,087.85
  4. Step 4: Simplify right side
    23,128.87x = 544,952,554.56
  5. Step 5: Solve for x
    x = 544,952,554.56/23,128.87
  6. Step 6: Final answer
    x = 23,561.57

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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.