Home / 27,806.63-38,373.77-15,869.73

Finding the Fourth Proportional to 27,806.63, 38,373.77 and 15,869.73

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Solution

The fourth proportional to 27,806.63, 38,373.77 and 15,869.73 is: 21,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,806.63 : 38,373.77 = 15,869.73 : x
  2. Step 2: Convert to fraction form
    27,806.63/38,373.77 = 15,869.73/x
  3. Step 3: Cross multiply
    27,806.63x = 38,373.77 × 15,869.73
  4. Step 4: Simplify right side
    27,806.63x = 608,981,408.66
  5. Step 5: Solve for x
    x = 608,981,408.66/27,806.63
  6. Step 6: Final answer
    x = 21,900.58

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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.