Home / 20,773.32-28,667.18-11,341.89

Finding the Fourth Proportional to 20,773.32, 28,667.18 and 11,341.89

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Solution

The fourth proportional to 20,773.32, 28,667.18 and 11,341.89 is: 15,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.32 : 28,667.18 = 11,341.89 : x
  2. Step 2: Convert to fraction form
    20,773.32/28,667.18 = 11,341.89/x
  3. Step 3: Cross multiply
    20,773.32x = 28,667.18 × 11,341.89
  4. Step 4: Simplify right side
    20,773.32x = 325,140,002.17
  5. Step 5: Solve for x
    x = 325,140,002.17/20,773.32
  6. Step 6: Final answer
    x = 15,651.81

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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.