Home / 21,486.25-32,231.20-5,903.88

Finding the Fourth Proportional to 21,486.25, 32,231.20 and 5,903.88

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Solution

The fourth proportional to 21,486.25, 32,231.20 and 5,903.88 is: 8,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.25 : 32,231.20 = 5,903.88 : x
  2. Step 2: Convert to fraction form
    21,486.25/32,231.20 = 5,903.88/x
  3. Step 3: Cross multiply
    21,486.25x = 32,231.20 × 5,903.88
  4. Step 4: Simplify right side
    21,486.25x = 190,289,137.06
  5. Step 5: Solve for x
    x = 190,289,137.06/21,486.25
  6. Step 6: Final answer
    x = 8,856.32

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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.