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Finding the Fourth Proportional to 20,023.52, 30,017.16 and 9,486.99

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Solution

The fourth proportional to 20,023.52, 30,017.16 and 9,486.99 is: 14,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.52 : 30,017.16 = 9,486.99 : x
  2. Step 2: Convert to fraction form
    20,023.52/30,017.16 = 9,486.99/x
  3. Step 3: Cross multiply
    20,023.52x = 30,017.16 × 9,486.99
  4. Step 4: Simplify right side
    20,023.52x = 284,772,496.75
  5. Step 5: Solve for x
    x = 284,772,496.75/20,023.52
  6. Step 6: Final answer
    x = 14,221.90

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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.