Home / 27,836.88-38,371.28-21,095.52

Finding the Fourth Proportional to 27,836.88, 38,371.28 and 21,095.52

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Solution

The fourth proportional to 27,836.88, 38,371.28 and 21,095.52 is: 29,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,836.88 : 38,371.28 = 21,095.52 : x
  2. Step 2: Convert to fraction form
    27,836.88/38,371.28 = 21,095.52/x
  3. Step 3: Cross multiply
    27,836.88x = 38,371.28 × 21,095.52
  4. Step 4: Simplify right side
    27,836.88x = 809,462,104.67
  5. Step 5: Solve for x
    x = 809,462,104.67/27,836.88
  6. Step 6: Final answer
    x = 29,078.77

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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.