Home / 21,866.09-32,799.74-8,538.57

Finding the Fourth Proportional to 21,866.09, 32,799.74 and 8,538.57

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Solution

The fourth proportional to 21,866.09, 32,799.74 and 8,538.57 is: 12,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.09 : 32,799.74 = 8,538.57 : x
  2. Step 2: Convert to fraction form
    21,866.09/32,799.74 = 8,538.57/x
  3. Step 3: Cross multiply
    21,866.09x = 32,799.74 × 8,538.57
  4. Step 4: Simplify right side
    21,866.09x = 280,062,833.28
  5. Step 5: Solve for x
    x = 280,062,833.28/21,866.09
  6. Step 6: Final answer
    x = 12,808.09

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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.