Home / 27,276.72-37,645.20-15,340.56

Finding the Fourth Proportional to 27,276.72, 37,645.20 and 15,340.56

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Solution

The fourth proportional to 27,276.72, 37,645.20 and 15,340.56 is: 21,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,276.72 : 37,645.20 = 15,340.56 : x
  2. Step 2: Convert to fraction form
    27,276.72/37,645.20 = 15,340.56/x
  3. Step 3: Cross multiply
    27,276.72x = 37,645.20 × 15,340.56
  4. Step 4: Simplify right side
    27,276.72x = 577,498,449.31
  5. Step 5: Solve for x
    x = 577,498,449.31/27,276.72
  6. Step 6: Final answer
    x = 21,171.84

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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.