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Finding the Fourth Proportional to 30,295.80, 41,807.49 and 16,866.75

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Solution

The fourth proportional to 30,295.80, 41,807.49 and 16,866.75 is: 23,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.80 : 41,807.49 = 16,866.75 : x
  2. Step 2: Convert to fraction form
    30,295.80/41,807.49 = 16,866.75/x
  3. Step 3: Cross multiply
    30,295.80x = 41,807.49 × 16,866.75
  4. Step 4: Simplify right side
    30,295.80x = 705,156,481.96
  5. Step 5: Solve for x
    x = 705,156,481.96/30,295.80
  6. Step 6: Final answer
    x = 23,275.72

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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.