Home / 20,608.41-28,441.49-12,952.92

Finding the Fourth Proportional to 20,608.41, 28,441.49 and 12,952.92

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Solution

The fourth proportional to 20,608.41, 28,441.49 and 12,952.92 is: 17,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.41 : 28,441.49 = 12,952.92 : x
  2. Step 2: Convert to fraction form
    20,608.41/28,441.49 = 12,952.92/x
  3. Step 3: Cross multiply
    20,608.41x = 28,441.49 × 12,952.92
  4. Step 4: Simplify right side
    20,608.41x = 368,400,279.89
  5. Step 5: Solve for x
    x = 368,400,279.89/20,608.41
  6. Step 6: Final answer
    x = 17,876.22

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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.