Home / 20,310.28-30,468.31-6,271.47

Finding the Fourth Proportional to 20,310.28, 30,468.31 and 6,271.47

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Solution

The fourth proportional to 20,310.28, 30,468.31 and 6,271.47 is: 9,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.28 : 30,468.31 = 6,271.47 : x
  2. Step 2: Convert to fraction form
    20,310.28/30,468.31 = 6,271.47/x
  3. Step 3: Cross multiply
    20,310.28x = 30,468.31 × 6,271.47
  4. Step 4: Simplify right side
    20,310.28x = 191,081,092.12
  5. Step 5: Solve for x
    x = 191,081,092.12/20,310.28
  6. Step 6: Final answer
    x = 9,408.10

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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.