Home / 27,696.94-38,223.16-15,761.39

Finding the Fourth Proportional to 27,696.94, 38,223.16 and 15,761.39

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Solution

The fourth proportional to 27,696.94, 38,223.16 and 15,761.39 is: 21,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.94 : 38,223.16 = 15,761.39 : x
  2. Step 2: Convert to fraction form
    27,696.94/38,223.16 = 15,761.39/x
  3. Step 3: Cross multiply
    27,696.94x = 38,223.16 × 15,761.39
  4. Step 4: Simplify right side
    27,696.94x = 602,449,901.27
  5. Step 5: Solve for x
    x = 602,449,901.27/27,696.94
  6. Step 6: Final answer
    x = 21,751.50

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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.