Home / 21,736.71-29,981.88-13,232.97

Finding the Fourth Proportional to 21,736.71, 29,981.88 and 13,232.97

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Solution

The fourth proportional to 21,736.71, 29,981.88 and 13,232.97 is: 18,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.71 : 29,981.88 = 13,232.97 : x
  2. Step 2: Convert to fraction form
    21,736.71/29,981.88 = 13,232.97/x
  3. Step 3: Cross multiply
    21,736.71x = 29,981.88 × 13,232.97
  4. Step 4: Simplify right side
    21,736.71x = 396,749,318.58
  5. Step 5: Solve for x
    x = 396,749,318.58/21,736.71
  6. Step 6: Final answer
    x = 18,252.50

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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.