Home / 19,757.37-27,275.09-15,270.99

Finding the Fourth Proportional to 19,757.37, 27,275.09 and 15,270.99

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Solution

The fourth proportional to 19,757.37, 27,275.09 and 15,270.99 is: 21,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,757.37 : 27,275.09 = 15,270.99 : x
  2. Step 2: Convert to fraction form
    19,757.37/27,275.09 = 15,270.99/x
  3. Step 3: Cross multiply
    19,757.37x = 27,275.09 × 15,270.99
  4. Step 4: Simplify right side
    19,757.37x = 416,517,550.28
  5. Step 5: Solve for x
    x = 416,517,550.28/19,757.37
  6. Step 6: Final answer
    x = 21,081.63

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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.