Home / 27,940.75-38,557.72-15,842.39

Finding the Fourth Proportional to 27,940.75, 38,557.72 and 15,842.39

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Solution

The fourth proportional to 27,940.75, 38,557.72 and 15,842.39 is: 21,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.75 : 38,557.72 = 15,842.39 : x
  2. Step 2: Convert to fraction form
    27,940.75/38,557.72 = 15,842.39/x
  3. Step 3: Cross multiply
    27,940.75x = 38,557.72 × 15,842.39
  4. Step 4: Simplify right side
    27,940.75x = 610,846,264.77
  5. Step 5: Solve for x
    x = 610,846,264.77/27,940.75
  6. Step 6: Final answer
    x = 21,862.20

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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.