Home / 27,440.28-37,879.38-19,789.56

Finding the Fourth Proportional to 27,440.28, 37,879.38 and 19,789.56

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Solution

The fourth proportional to 27,440.28, 37,879.38 and 19,789.56 is: 27,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,440.28 : 37,879.38 = 19,789.56 : x
  2. Step 2: Convert to fraction form
    27,440.28/37,879.38 = 19,789.56/x
  3. Step 3: Cross multiply
    27,440.28x = 37,879.38 × 19,789.56
  4. Step 4: Simplify right side
    27,440.28x = 749,616,263.27
  5. Step 5: Solve for x
    x = 749,616,263.27/27,440.28
  6. Step 6: Final answer
    x = 27,318.10

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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.