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Finding the Fourth Proportional to 20,602.52, 30,906.18 and 7,461.08

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Solution

The fourth proportional to 20,602.52, 30,906.18 and 7,461.08 is: 11,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.52 : 30,906.18 = 7,461.08 : x
  2. Step 2: Convert to fraction form
    20,602.52/30,906.18 = 7,461.08/x
  3. Step 3: Cross multiply
    20,602.52x = 30,906.18 × 7,461.08
  4. Step 4: Simplify right side
    20,602.52x = 230,593,481.47
  5. Step 5: Solve for x
    x = 230,593,481.47/20,602.52
  6. Step 6: Final answer
    x = 11,192.49

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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.