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Finding the Fourth Proportional to 21,472.94, 32,212.46 and 8,326.64

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Solution

The fourth proportional to 21,472.94, 32,212.46 and 8,326.64 is: 12,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.94 : 32,212.46 = 8,326.64 : x
  2. Step 2: Convert to fraction form
    21,472.94/32,212.46 = 8,326.64/x
  3. Step 3: Cross multiply
    21,472.94x = 32,212.46 × 8,326.64
  4. Step 4: Simplify right side
    21,472.94x = 268,221,355.24
  5. Step 5: Solve for x
    x = 268,221,355.24/21,472.94
  6. Step 6: Final answer
    x = 12,491.14

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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.