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Finding the Fourth Proportional to 27,137.88, 37,411.74 and 19,955.16

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Solution

The fourth proportional to 27,137.88, 37,411.74 and 19,955.16 is: 27,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.88 : 37,411.74 = 19,955.16 : x
  2. Step 2: Convert to fraction form
    27,137.88/37,411.74 = 19,955.16/x
  3. Step 3: Cross multiply
    27,137.88x = 37,411.74 × 19,955.16
  4. Step 4: Simplify right side
    27,137.88x = 746,557,257.58
  5. Step 5: Solve for x
    x = 746,557,257.58/27,137.88
  6. Step 6: Final answer
    x = 27,509.79

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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.