Home / 27,696.18-38,222.14-15,761.22

Finding the Fourth Proportional to 27,696.18, 38,222.14 and 15,761.22

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Solution

The fourth proportional to 27,696.18, 38,222.14 and 15,761.22 is: 21,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.18 : 38,222.14 = 15,761.22 : x
  2. Step 2: Convert to fraction form
    27,696.18/38,222.14 = 15,761.22/x
  3. Step 3: Cross multiply
    27,696.18x = 38,222.14 × 15,761.22
  4. Step 4: Simplify right side
    27,696.18x = 602,427,557.41
  5. Step 5: Solve for x
    x = 602,427,557.41/27,696.18
  6. Step 6: Final answer
    x = 21,751.29

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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.