Home / 13,633.11-20,440.89-5,740.74

Finding the Fourth Proportional to 13,633.11, 20,440.89 and 5,740.74

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Solution

The fourth proportional to 13,633.11, 20,440.89 and 5,740.74 is: 8,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.11 : 20,440.89 = 5,740.74 : x
  2. Step 2: Convert to fraction form
    13,633.11/20,440.89 = 5,740.74/x
  3. Step 3: Cross multiply
    13,633.11x = 20,440.89 × 5,740.74
  4. Step 4: Simplify right side
    13,633.11x = 117,345,834.86
  5. Step 5: Solve for x
    x = 117,345,834.86/13,633.11
  6. Step 6: Final answer
    x = 8,607.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.