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Finding the Fourth Proportional to 21,646.98, 32,469.71 and 8,316.54

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Solution

The fourth proportional to 21,646.98, 32,469.71 and 8,316.54 is: 12,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.98 : 32,469.71 = 8,316.54 : x
  2. Step 2: Convert to fraction form
    21,646.98/32,469.71 = 8,316.54/x
  3. Step 3: Cross multiply
    21,646.98x = 32,469.71 × 8,316.54
  4. Step 4: Simplify right side
    21,646.98x = 270,035,600.42
  5. Step 5: Solve for x
    x = 270,035,600.42/21,646.98
  6. Step 6: Final answer
    x = 12,474.52

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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.