Home / 27,789.62-38,349.27-15,853.14

Finding the Fourth Proportional to 27,789.62, 38,349.27 and 15,853.14

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Solution

The fourth proportional to 27,789.62, 38,349.27 and 15,853.14 is: 21,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.62 : 38,349.27 = 15,853.14 : x
  2. Step 2: Convert to fraction form
    27,789.62/38,349.27 = 15,853.14/x
  3. Step 3: Cross multiply
    27,789.62x = 38,349.27 × 15,853.14
  4. Step 4: Simplify right side
    27,789.62x = 607,956,346.21
  5. Step 5: Solve for x
    x = 607,956,346.21/27,789.62
  6. Step 6: Final answer
    x = 21,877.10

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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.