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Finding the Fourth Proportional to 18,371.04, 27,557.08 and 4,520

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Solution

The fourth proportional to 18,371.04, 27,557.08 and 4,520 is: 6,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.04 : 27,557.08 = 4,520 : x
  2. Step 2: Convert to fraction form
    18,371.04/27,557.08 = 4,520/x
  3. Step 3: Cross multiply
    18,371.04x = 27,557.08 × 4,520
  4. Step 4: Simplify right side
    18,371.04x = 124,558,001.60
  5. Step 5: Solve for x
    x = 124,558,001.60/18,371.04
  6. Step 6: Final answer
    x = 6,780.13

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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.