Home / 21,474.87-32,208.57-5,680.07

Finding the Fourth Proportional to 21,474.87, 32,208.57 and 5,680.07

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Solution

The fourth proportional to 21,474.87, 32,208.57 and 5,680.07 is: 8,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.87 : 32,208.57 = 5,680.07 : x
  2. Step 2: Convert to fraction form
    21,474.87/32,208.57 = 5,680.07/x
  3. Step 3: Cross multiply
    21,474.87x = 32,208.57 × 5,680.07
  4. Step 4: Simplify right side
    21,474.87x = 182,946,771.16
  5. Step 5: Solve for x
    x = 182,946,771.16/21,474.87
  6. Step 6: Final answer
    x = 8,519.11

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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.