Home / 19,661.31-27,132.47-10,708.79

Finding the Fourth Proportional to 19,661.31, 27,132.47 and 10,708.79

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Solution

The fourth proportional to 19,661.31, 27,132.47 and 10,708.79 is: 14,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.31 : 27,132.47 = 10,708.79 : x
  2. Step 2: Convert to fraction form
    19,661.31/27,132.47 = 10,708.79/x
  3. Step 3: Cross multiply
    19,661.31x = 27,132.47 × 10,708.79
  4. Step 4: Simplify right side
    19,661.31x = 290,555,734.21
  5. Step 5: Solve for x
    x = 290,555,734.21/19,661.31
  6. Step 6: Final answer
    x = 14,778.05

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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.