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Finding the Fourth Proportional to 18,350.30, 27,520.05 and 5,203.82

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Solution

The fourth proportional to 18,350.30, 27,520.05 and 5,203.82 is: 7,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.30 : 27,520.05 = 5,203.82 : x
  2. Step 2: Convert to fraction form
    18,350.30/27,520.05 = 5,203.82/x
  3. Step 3: Cross multiply
    18,350.30x = 27,520.05 × 5,203.82
  4. Step 4: Simplify right side
    18,350.30x = 143,209,386.59
  5. Step 5: Solve for x
    x = 143,209,386.59/18,350.30
  6. Step 6: Final answer
    x = 7,804.20

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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.