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Finding the Fourth Proportional to 30,149.78, 41,606.73 and 16,723.08

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Solution

The fourth proportional to 30,149.78, 41,606.73 and 16,723.08 is: 23,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.78 : 41,606.73 = 16,723.08 : x
  2. Step 2: Convert to fraction form
    30,149.78/41,606.73 = 16,723.08/x
  3. Step 3: Cross multiply
    30,149.78x = 41,606.73 × 16,723.08
  4. Step 4: Simplify right side
    30,149.78x = 695,792,674.33
  5. Step 5: Solve for x
    x = 695,792,674.33/30,149.78
  6. Step 6: Final answer
    x = 23,077.87

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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.