Home / 18,632.36-27,948.50-4,781.36

Finding the Fourth Proportional to 18,632.36, 27,948.50 and 4,781.36

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Solution

The fourth proportional to 18,632.36, 27,948.50 and 4,781.36 is: 7,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.36 : 27,948.50 = 4,781.36 : x
  2. Step 2: Convert to fraction form
    18,632.36/27,948.50 = 4,781.36/x
  3. Step 3: Cross multiply
    18,632.36x = 27,948.50 × 4,781.36
  4. Step 4: Simplify right side
    18,632.36x = 133,631,676.31
  5. Step 5: Solve for x
    x = 133,631,676.31/18,632.36
  6. Step 6: Final answer
    x = 7,172.02

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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.