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Finding the Fourth Proportional to 20,337.66, 30,422.25 and 19,093.50

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Solution

The fourth proportional to 20,337.66, 30,422.25 and 19,093.50 is: 28,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.66 : 30,422.25 = 19,093.50 : x
  2. Step 2: Convert to fraction form
    20,337.66/30,422.25 = 19,093.50/x
  3. Step 3: Cross multiply
    20,337.66x = 30,422.25 × 19,093.50
  4. Step 4: Simplify right side
    20,337.66x = 580,867,230.38
  5. Step 5: Solve for x
    x = 580,867,230.38/20,337.66
  6. Step 6: Final answer
    x = 28,561.16

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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.