Home / 19,661.05-27,131.43-10,708.51

Finding the Fourth Proportional to 19,661.05, 27,131.43 and 10,708.51

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Solution

The fourth proportional to 19,661.05, 27,131.43 and 10,708.51 is: 14,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.05 : 27,131.43 = 10,708.51 : x
  2. Step 2: Convert to fraction form
    19,661.05/27,131.43 = 10,708.51/x
  3. Step 3: Cross multiply
    19,661.05x = 27,131.43 × 10,708.51
  4. Step 4: Simplify right side
    19,661.05x = 290,537,189.47
  5. Step 5: Solve for x
    x = 290,537,189.47/19,661.05
  6. Step 6: Final answer
    x = 14,777.30

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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.