Home / 27,696.32-38,229-19,761.56

Finding the Fourth Proportional to 27,696.32, 38,229 and 19,761.56

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Solution

The fourth proportional to 27,696.32, 38,229 and 19,761.56 is: 27,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.32 : 38,229 = 19,761.56 : x
  2. Step 2: Convert to fraction form
    27,696.32/38,229 = 19,761.56/x
  3. Step 3: Cross multiply
    27,696.32x = 38,229 × 19,761.56
  4. Step 4: Simplify right side
    27,696.32x = 755,464,677.24
  5. Step 5: Solve for x
    x = 755,464,677.24/27,696.32
  6. Step 6: Final answer
    x = 27,276.72

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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.