Home / 47,921.48-66,131.91-27,790.31

Finding the Fourth Proportional to 47,921.48, 66,131.91 and 27,790.31

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Solution

The fourth proportional to 47,921.48, 66,131.91 and 27,790.31 is: 38,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921.48 : 66,131.91 = 27,790.31 : x
  2. Step 2: Convert to fraction form
    47,921.48/66,131.91 = 27,790.31/x
  3. Step 3: Cross multiply
    47,921.48x = 66,131.91 × 27,790.31
  4. Step 4: Simplify right side
    47,921.48x = 1,837,826,227.69
  5. Step 5: Solve for x
    x = 1,837,826,227.69/47,921.48
  6. Step 6: Final answer
    x = 38,350.78

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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.