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Finding the Fourth Proportional to 20,373.78, 30,567.32 and 9,845.01

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Solution

The fourth proportional to 20,373.78, 30,567.32 and 9,845.01 is: 14,770.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.78 : 30,567.32 = 9,845.01 : x
  2. Step 2: Convert to fraction form
    20,373.78/30,567.32 = 9,845.01/x
  3. Step 3: Cross multiply
    20,373.78x = 30,567.32 × 9,845.01
  4. Step 4: Simplify right side
    20,373.78x = 300,935,614.15
  5. Step 5: Solve for x
    x = 300,935,614.15/20,373.78
  6. Step 6: Final answer
    x = 14,770.73

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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.