Home / 20,973.61-28,944.19-11,414.12

Finding the Fourth Proportional to 20,973.61, 28,944.19 and 11,414.12

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Solution

The fourth proportional to 20,973.61, 28,944.19 and 11,414.12 is: 15,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.61 : 28,944.19 = 11,414.12 : x
  2. Step 2: Convert to fraction form
    20,973.61/28,944.19 = 11,414.12/x
  3. Step 3: Cross multiply
    20,973.61x = 28,944.19 × 11,414.12
  4. Step 4: Simplify right side
    20,973.61x = 330,372,311.46
  5. Step 5: Solve for x
    x = 330,372,311.46/20,973.61
  6. Step 6: Final answer
    x = 15,751.81

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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.