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Finding the Fourth Proportional to 20,339.01, 30,548.61 and 19,464.21

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Solution

The fourth proportional to 20,339.01, 30,548.61 and 19,464.21 is: 29,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.01 : 30,548.61 = 19,464.21 : x
  2. Step 2: Convert to fraction form
    20,339.01/30,548.61 = 19,464.21/x
  3. Step 3: Cross multiply
    20,339.01x = 30,548.61 × 19,464.21
  4. Step 4: Simplify right side
    20,339.01x = 594,604,560.25
  5. Step 5: Solve for x
    x = 594,604,560.25/20,339.01
  6. Step 6: Final answer
    x = 29,234.69

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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.