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Finding the Fourth Proportional to 33,866, 46,724.28 and 21,938.48

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Solution

The fourth proportional to 33,866, 46,724.28 and 21,938.48 is: 30,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,866 : 46,724.28 = 21,938.48 : x
  2. Step 2: Convert to fraction form
    33,866/46,724.28 = 21,938.48/x
  3. Step 3: Cross multiply
    33,866x = 46,724.28 × 21,938.48
  4. Step 4: Simplify right side
    33,866x = 1,025,059,682.29
  5. Step 5: Solve for x
    x = 1,025,059,682.29/33,866
  6. Step 6: Final answer
    x = 30,268.11

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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.