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Finding the Fourth Proportional to 21,602.73, 32,404.10 and 12,362.25

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Solution

The fourth proportional to 21,602.73, 32,404.10 and 12,362.25 is: 18,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.73 : 32,404.10 = 12,362.25 : x
  2. Step 2: Convert to fraction form
    21,602.73/32,404.10 = 12,362.25/x
  3. Step 3: Cross multiply
    21,602.73x = 32,404.10 × 12,362.25
  4. Step 4: Simplify right side
    21,602.73x = 400,587,523.41
  5. Step 5: Solve for x
    x = 400,587,523.41/21,602.73
  6. Step 6: Final answer
    x = 18,543.38

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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.