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Finding the Fourth Proportional to 30,186.79, 41,655.79 and 16,757.39

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Solution

The fourth proportional to 30,186.79, 41,655.79 and 16,757.39 is: 23,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.79 : 41,655.79 = 16,757.39 : x
  2. Step 2: Convert to fraction form
    30,186.79/41,655.79 = 16,757.39/x
  3. Step 3: Cross multiply
    30,186.79x = 41,655.79 × 16,757.39
  4. Step 4: Simplify right side
    30,186.79x = 698,042,235.00
  5. Step 5: Solve for x
    x = 698,042,235.00/30,186.79
  6. Step 6: Final answer
    x = 23,124.10

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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.