Home / 27,789.48-38,349.52-15,042.68

Finding the Fourth Proportional to 27,789.48, 38,349.52 and 15,042.68

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Solution

The fourth proportional to 27,789.48, 38,349.52 and 15,042.68 is: 20,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.48 : 38,349.52 = 15,042.68 : x
  2. Step 2: Convert to fraction form
    27,789.48/38,349.52 = 15,042.68/x
  3. Step 3: Cross multiply
    27,789.48x = 38,349.52 × 15,042.68
  4. Step 4: Simplify right side
    27,789.48x = 576,879,557.51
  5. Step 5: Solve for x
    x = 576,879,557.51/27,789.48
  6. Step 6: Final answer
    x = 20,758.92

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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.