Home / 25,808.22-38,712.33-21,181.50

Finding the Fourth Proportional to 25,808.22, 38,712.33 and 21,181.50

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Solution

The fourth proportional to 25,808.22, 38,712.33 and 21,181.50 is: 31,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,808.22 : 38,712.33 = 21,181.50 : x
  2. Step 2: Convert to fraction form
    25,808.22/38,712.33 = 21,181.50/x
  3. Step 3: Cross multiply
    25,808.22x = 38,712.33 × 21,181.50
  4. Step 4: Simplify right side
    25,808.22x = 819,985,217.90
  5. Step 5: Solve for x
    x = 819,985,217.90/25,808.22
  6. Step 6: Final answer
    x = 31,772.25

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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.