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Finding the Fourth Proportional to 20,773.38, 28,667.38 and 11,342.04

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Solution

The fourth proportional to 20,773.38, 28,667.38 and 11,342.04 is: 15,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.38 : 28,667.38 = 11,342.04 : x
  2. Step 2: Convert to fraction form
    20,773.38/28,667.38 = 11,342.04/x
  3. Step 3: Cross multiply
    20,773.38x = 28,667.38 × 11,342.04
  4. Step 4: Simplify right side
    20,773.38x = 325,146,570.66
  5. Step 5: Solve for x
    x = 325,146,570.66/20,773.38
  6. Step 6: Final answer
    x = 15,652.08

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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.