Home / 27,149.18-37,458.77-15,661.31

Finding the Fourth Proportional to 27,149.18, 37,458.77 and 15,661.31

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Solution

The fourth proportional to 27,149.18, 37,458.77 and 15,661.31 is: 21,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.18 : 37,458.77 = 15,661.31 : x
  2. Step 2: Convert to fraction form
    27,149.18/37,458.77 = 15,661.31/x
  3. Step 3: Cross multiply
    27,149.18x = 37,458.77 × 15,661.31
  4. Step 4: Simplify right side
    27,149.18x = 586,653,143.59
  5. Step 5: Solve for x
    x = 586,653,143.59/27,149.18
  6. Step 6: Final answer
    x = 21,608.51

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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.