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Finding the Fourth Proportional to 20,394.72, 30,597.48 and 6,354.72

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Solution

The fourth proportional to 20,394.72, 30,597.48 and 6,354.72 is: 9,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.72 : 30,597.48 = 6,354.72 : x
  2. Step 2: Convert to fraction form
    20,394.72/30,597.48 = 6,354.72/x
  3. Step 3: Cross multiply
    20,394.72x = 30,597.48 × 6,354.72
  4. Step 4: Simplify right side
    20,394.72x = 194,438,418.11
  5. Step 5: Solve for x
    x = 194,438,418.11/20,394.72
  6. Step 6: Final answer
    x = 9,533.76

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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.