Home / 30,120.77-41,572.49-17,382.17

Finding the Fourth Proportional to 30,120.77, 41,572.49 and 17,382.17

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Solution

The fourth proportional to 30,120.77, 41,572.49 and 17,382.17 is: 23,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.77 : 41,572.49 = 17,382.17 : x
  2. Step 2: Convert to fraction form
    30,120.77/41,572.49 = 17,382.17/x
  3. Step 3: Cross multiply
    30,120.77x = 41,572.49 × 17,382.17
  4. Step 4: Simplify right side
    30,120.77x = 722,619,793.73
  5. Step 5: Solve for x
    x = 722,619,793.73/30,120.77
  6. Step 6: Final answer
    x = 23,990.75

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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.