Home / 21,460.78-32,197.38-8,974.36

Finding the Fourth Proportional to 21,460.78, 32,197.38 and 8,974.36

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Solution

The fourth proportional to 21,460.78, 32,197.38 and 8,974.36 is: 13,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,460.78 : 32,197.38 = 8,974.36 : x
  2. Step 2: Convert to fraction form
    21,460.78/32,197.38 = 8,974.36/x
  3. Step 3: Cross multiply
    21,460.78x = 32,197.38 × 8,974.36
  4. Step 4: Simplify right side
    21,460.78x = 288,950,879.18
  5. Step 5: Solve for x
    x = 288,950,879.18/21,460.78
  6. Step 6: Final answer
    x = 13,464.14

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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.