Home / 21,865.25-32,788.80-6,867.33

Finding the Fourth Proportional to 21,865.25, 32,788.80 and 6,867.33

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Solution

The fourth proportional to 21,865.25, 32,788.80 and 6,867.33 is: 10,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.25 : 32,788.80 = 6,867.33 : x
  2. Step 2: Convert to fraction form
    21,865.25/32,788.80 = 6,867.33/x
  3. Step 3: Cross multiply
    21,865.25x = 32,788.80 × 6,867.33
  4. Step 4: Simplify right side
    21,865.25x = 225,171,509.90
  5. Step 5: Solve for x
    x = 225,171,509.90/21,865.25
  6. Step 6: Final answer
    x = 10,298.15

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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.