Home / 21,466.17-32,203.80-8,979.75

Finding the Fourth Proportional to 21,466.17, 32,203.80 and 8,979.75

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Solution

The fourth proportional to 21,466.17, 32,203.80 and 8,979.75 is: 13,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.17 : 32,203.80 = 8,979.75 : x
  2. Step 2: Convert to fraction form
    21,466.17/32,203.80 = 8,979.75/x
  3. Step 3: Cross multiply
    21,466.17x = 32,203.80 × 8,979.75
  4. Step 4: Simplify right side
    21,466.17x = 289,182,073.05
  5. Step 5: Solve for x
    x = 289,182,073.05/21,466.17
  6. Step 6: Final answer
    x = 13,471.53

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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.