Home / 20,974.95-28,944.59-12,016.24

Finding the Fourth Proportional to 20,974.95, 28,944.59 and 12,016.24

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Solution

The fourth proportional to 20,974.95, 28,944.59 and 12,016.24 is: 16,581.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.95 : 28,944.59 = 12,016.24 : x
  2. Step 2: Convert to fraction form
    20,974.95/28,944.59 = 12,016.24/x
  3. Step 3: Cross multiply
    20,974.95x = 28,944.59 × 12,016.24
  4. Step 4: Simplify right side
    20,974.95x = 347,805,007.70
  5. Step 5: Solve for x
    x = 347,805,007.70/20,974.95
  6. Step 6: Final answer
    x = 16,581.92

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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.