Home / 25,091.88-34,608.66-21,309.08

Finding the Fourth Proportional to 25,091.88, 34,608.66 and 21,309.08

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Solution

The fourth proportional to 25,091.88, 34,608.66 and 21,309.08 is: 29,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,091.88 : 34,608.66 = 21,309.08 : x
  2. Step 2: Convert to fraction form
    25,091.88/34,608.66 = 21,309.08/x
  3. Step 3: Cross multiply
    25,091.88x = 34,608.66 × 21,309.08
  4. Step 4: Simplify right side
    25,091.88x = 737,478,531.59
  5. Step 5: Solve for x
    x = 737,478,531.59/25,091.88
  6. Step 6: Final answer
    x = 29,391.12

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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.