Home / 27,120.33-37,424.93-15,790.12

Finding the Fourth Proportional to 27,120.33, 37,424.93 and 15,790.12

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Solution

The fourth proportional to 27,120.33, 37,424.93 and 15,790.12 is: 21,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.33 : 37,424.93 = 15,790.12 : x
  2. Step 2: Convert to fraction form
    27,120.33/37,424.93 = 15,790.12/x
  3. Step 3: Cross multiply
    27,120.33x = 37,424.93 × 15,790.12
  4. Step 4: Simplify right side
    27,120.33x = 590,944,135.69
  5. Step 5: Solve for x
    x = 590,944,135.69/27,120.33
  6. Step 6: Final answer
    x = 21,789.71

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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.