Home / 21,720.80-32,597.62-15,892.44

Finding the Fourth Proportional to 21,720.80, 32,597.62 and 15,892.44

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Solution

The fourth proportional to 21,720.80, 32,597.62 and 15,892.44 is: 23,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.80 : 32,597.62 = 15,892.44 : x
  2. Step 2: Convert to fraction form
    21,720.80/32,597.62 = 15,892.44/x
  3. Step 3: Cross multiply
    21,720.80x = 32,597.62 × 15,892.44
  4. Step 4: Simplify right side
    21,720.80x = 518,055,719.99
  5. Step 5: Solve for x
    x = 518,055,719.99/21,720.80
  6. Step 6: Final answer
    x = 23,850.67

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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.