Home / 30,619.11-42,251.45-17,187.29

Finding the Fourth Proportional to 30,619.11, 42,251.45 and 17,187.29

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Solution

The fourth proportional to 30,619.11, 42,251.45 and 17,187.29 is: 23,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.11 : 42,251.45 = 17,187.29 : x
  2. Step 2: Convert to fraction form
    30,619.11/42,251.45 = 17,187.29/x
  3. Step 3: Cross multiply
    30,619.11x = 42,251.45 × 17,187.29
  4. Step 4: Simplify right side
    30,619.11x = 726,187,626.88
  5. Step 5: Solve for x
    x = 726,187,626.88/30,619.11
  6. Step 6: Final answer
    x = 23,716.81

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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.