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Finding the Fourth Proportional to 20,197.68, 30,292.88 and 7,053.81

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Solution

The fourth proportional to 20,197.68, 30,292.88 and 7,053.81 is: 10,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.68 : 30,292.88 = 7,053.81 : x
  2. Step 2: Convert to fraction form
    20,197.68/30,292.88 = 7,053.81/x
  3. Step 3: Cross multiply
    20,197.68x = 30,292.88 × 7,053.81
  4. Step 4: Simplify right side
    20,197.68x = 213,680,241.40
  5. Step 5: Solve for x
    x = 213,680,241.40/20,197.68
  6. Step 6: Final answer
    x = 10,579.44

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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.