Home / 20,584.92-28,407.30-12,085.08

Finding the Fourth Proportional to 20,584.92, 28,407.30 and 12,085.08

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Solution

The fourth proportional to 20,584.92, 28,407.30 and 12,085.08 is: 16,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.92 : 28,407.30 = 12,085.08 : x
  2. Step 2: Convert to fraction form
    20,584.92/28,407.30 = 12,085.08/x
  3. Step 3: Cross multiply
    20,584.92x = 28,407.30 × 12,085.08
  4. Step 4: Simplify right side
    20,584.92x = 343,304,493.08
  5. Step 5: Solve for x
    x = 343,304,493.08/20,584.92
  6. Step 6: Final answer
    x = 16,677.48

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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.