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Finding the Fourth Proportional to 18,369, 27,559.02 and 13,042.44

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Solution

The fourth proportional to 18,369, 27,559.02 and 13,042.44 is: 19,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369 : 27,559.02 = 13,042.44 : x
  2. Step 2: Convert to fraction form
    18,369/27,559.02 = 13,042.44/x
  3. Step 3: Cross multiply
    18,369x = 27,559.02 × 13,042.44
  4. Step 4: Simplify right side
    18,369x = 359,436,864.81
  5. Step 5: Solve for x
    x = 359,436,864.81/18,369
  6. Step 6: Final answer
    x = 19,567.58

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1.5x scale

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.