Home / 27,725.68-38,262.54-15,789.52

Finding the Fourth Proportional to 27,725.68, 38,262.54 and 15,789.52

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Solution

The fourth proportional to 27,725.68, 38,262.54 and 15,789.52 is: 21,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,725.68 : 38,262.54 = 15,789.52 : x
  2. Step 2: Convert to fraction form
    27,725.68/38,262.54 = 15,789.52/x
  3. Step 3: Cross multiply
    27,725.68x = 38,262.54 × 15,789.52
  4. Step 4: Simplify right side
    27,725.68x = 604,147,140.58
  5. Step 5: Solve for x
    x = 604,147,140.58/27,725.68
  6. Step 6: Final answer
    x = 21,790.16

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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.