Home / 20,974.01-28,944.14-11,542.50

Finding the Fourth Proportional to 20,974.01, 28,944.14 and 11,542.50

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Solution

The fourth proportional to 20,974.01, 28,944.14 and 11,542.50 is: 15,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.01 : 28,944.14 = 11,542.50 : x
  2. Step 2: Convert to fraction form
    20,974.01/28,944.14 = 11,542.50/x
  3. Step 3: Cross multiply
    20,974.01x = 28,944.14 × 11,542.50
  4. Step 4: Simplify right side
    20,974.01x = 334,087,678.24
  5. Step 5: Solve for x
    x = 334,087,678.24/20,974.01
  6. Step 6: Final answer
    x = 15,928.65

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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.