Home / 21,340.26-32,018.68-8,857.16

Finding the Fourth Proportional to 21,340.26, 32,018.68 and 8,857.16

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Solution

The fourth proportional to 21,340.26, 32,018.68 and 8,857.16 is: 13,289.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.26 : 32,018.68 = 8,857.16 : x
  2. Step 2: Convert to fraction form
    21,340.26/32,018.68 = 8,857.16/x
  3. Step 3: Cross multiply
    21,340.26x = 32,018.68 × 8,857.16
  4. Step 4: Simplify right side
    21,340.26x = 283,594,571.75
  5. Step 5: Solve for x
    x = 283,594,571.75/21,340.26
  6. Step 6: Final answer
    x = 13,289.18

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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.