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Finding the Fourth Proportional to 20,393.39, 30,577.93 and 7,062

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Solution

The fourth proportional to 20,393.39, 30,577.93 and 7,062 is: 10,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.39 : 30,577.93 = 7,062 : x
  2. Step 2: Convert to fraction form
    20,393.39/30,577.93 = 7,062/x
  3. Step 3: Cross multiply
    20,393.39x = 30,577.93 × 7,062
  4. Step 4: Simplify right side
    20,393.39x = 215,941,324.01
  5. Step 5: Solve for x
    x = 215,941,324.01/20,393.39
  6. Step 6: Final answer
    x = 10,588.79

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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.