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Finding the Fourth Proportional to 30,382.68, 41,943.87 and 22,197.11

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Solution

The fourth proportional to 30,382.68, 41,943.87 and 22,197.11 is: 30,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.68 : 41,943.87 = 22,197.11 : x
  2. Step 2: Convert to fraction form
    30,382.68/41,943.87 = 22,197.11/x
  3. Step 3: Cross multiply
    30,382.68x = 41,943.87 × 22,197.11
  4. Step 4: Simplify right side
    30,382.68x = 931,032,696.22
  5. Step 5: Solve for x
    x = 931,032,696.22/30,382.68
  6. Step 6: Final answer
    x = 30,643.53

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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.