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Finding the Fourth Proportional to 17,309.36, 23,811.36 and 15,175.28

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Solution

The fourth proportional to 17,309.36, 23,811.36 and 15,175.28 is: 20,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,309.36 : 23,811.36 = 15,175.28 : x
  2. Step 2: Convert to fraction form
    17,309.36/23,811.36 = 15,175.28/x
  3. Step 3: Cross multiply
    17,309.36x = 23,811.36 × 15,175.28
  4. Step 4: Simplify right side
    17,309.36x = 361,344,055.18
  5. Step 5: Solve for x
    x = 361,344,055.18/17,309.36
  6. Step 6: Final answer
    x = 20,875.65

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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.