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Finding the Fourth Proportional to 21,518.76, 32,280.02 and 6,727.76

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Solution

The fourth proportional to 21,518.76, 32,280.02 and 6,727.76 is: 10,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.76 : 32,280.02 = 6,727.76 : x
  2. Step 2: Convert to fraction form
    21,518.76/32,280.02 = 6,727.76/x
  3. Step 3: Cross multiply
    21,518.76x = 32,280.02 × 6,727.76
  4. Step 4: Simplify right side
    21,518.76x = 217,172,178.60
  5. Step 5: Solve for x
    x = 217,172,178.60/21,518.76
  6. Step 6: Final answer
    x = 10,092.22

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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.