Home / 28,890.26-43,335.23-9,170.33

Finding the Fourth Proportional to 28,890.26, 43,335.23 and 9,170.33

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Solution

The fourth proportional to 28,890.26, 43,335.23 and 9,170.33 is: 13,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.26 : 43,335.23 = 9,170.33 : x
  2. Step 2: Convert to fraction form
    28,890.26/43,335.23 = 9,170.33/x
  3. Step 3: Cross multiply
    28,890.26x = 43,335.23 × 9,170.33
  4. Step 4: Simplify right side
    28,890.26x = 397,398,359.73
  5. Step 5: Solve for x
    x = 397,398,359.73/28,890.26
  6. Step 6: Final answer
    x = 13,755.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.