Home / 17,415.96-23,979.39-15,369.77

Finding the Fourth Proportional to 17,415.96, 23,979.39 and 15,369.77

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Solution

The fourth proportional to 17,415.96, 23,979.39 and 15,369.77 is: 21,162.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,415.96 : 23,979.39 = 15,369.77 : x
  2. Step 2: Convert to fraction form
    17,415.96/23,979.39 = 15,369.77/x
  3. Step 3: Cross multiply
    17,415.96x = 23,979.39 × 15,369.77
  4. Step 4: Simplify right side
    17,415.96x = 368,557,589.14
  5. Step 5: Solve for x
    x = 368,557,589.14/17,415.96
  6. Step 6: Final answer
    x = 21,162.06

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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.