Home / 21,519.66-32,280.45-6,728.88

Finding the Fourth Proportional to 21,519.66, 32,280.45 and 6,728.88

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Solution

The fourth proportional to 21,519.66, 32,280.45 and 6,728.88 is: 10,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.66 : 32,280.45 = 6,728.88 : x
  2. Step 2: Convert to fraction form
    21,519.66/32,280.45 = 6,728.88/x
  3. Step 3: Cross multiply
    21,519.66x = 32,280.45 × 6,728.88
  4. Step 4: Simplify right side
    21,519.66x = 217,211,274.40
  5. Step 5: Solve for x
    x = 217,211,274.40/21,519.66
  6. Step 6: Final answer
    x = 10,093.62

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1.5x scale

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.