Home / 30,913.73-42,661.01-16,766.57

Finding the Fourth Proportional to 30,913.73, 42,661.01 and 16,766.57

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Solution

The fourth proportional to 30,913.73, 42,661.01 and 16,766.57 is: 23,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.73 : 42,661.01 = 16,766.57 : x
  2. Step 2: Convert to fraction form
    30,913.73/42,661.01 = 16,766.57/x
  3. Step 3: Cross multiply
    30,913.73x = 42,661.01 × 16,766.57
  4. Step 4: Simplify right side
    30,913.73x = 715,278,726.60
  5. Step 5: Solve for x
    x = 715,278,726.60/30,913.73
  6. Step 6: Final answer
    x = 23,137.90

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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.