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Finding the Fourth Proportional to 22,420.50, 30,942.47 and 16,745.39

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Solution

The fourth proportional to 22,420.50, 30,942.47 and 16,745.39 is: 23,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.50 : 30,942.47 = 16,745.39 : x
  2. Step 2: Convert to fraction form
    22,420.50/30,942.47 = 16,745.39/x
  3. Step 3: Cross multiply
    22,420.50x = 30,942.47 × 16,745.39
  4. Step 4: Simplify right side
    22,420.50x = 518,143,727.71
  5. Step 5: Solve for x
    x = 518,143,727.71/22,420.50
  6. Step 6: Final answer
    x = 23,110.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.