Home / 27,769.23-38,320.56-15,836.38

Finding the Fourth Proportional to 27,769.23, 38,320.56 and 15,836.38

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Solution

The fourth proportional to 27,769.23, 38,320.56 and 15,836.38 is: 21,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.23 : 38,320.56 = 15,836.38 : x
  2. Step 2: Convert to fraction form
    27,769.23/38,320.56 = 15,836.38/x
  3. Step 3: Cross multiply
    27,769.23x = 38,320.56 × 15,836.38
  4. Step 4: Simplify right side
    27,769.23x = 606,858,854.17
  5. Step 5: Solve for x
    x = 606,858,854.17/27,769.23
  6. Step 6: Final answer
    x = 21,853.64

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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.