Home / 17,172.38-23,675.20-12,388.32

Finding the Fourth Proportional to 17,172.38, 23,675.20 and 12,388.32

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Solution

The fourth proportional to 17,172.38, 23,675.20 and 12,388.32 is: 17,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.38 : 23,675.20 = 12,388.32 : x
  2. Step 2: Convert to fraction form
    17,172.38/23,675.20 = 12,388.32/x
  3. Step 3: Cross multiply
    17,172.38x = 23,675.20 × 12,388.32
  4. Step 4: Simplify right side
    17,172.38x = 293,295,953.66
  5. Step 5: Solve for x
    x = 293,295,953.66/17,172.38
  6. Step 6: Final answer
    x = 17,079.52

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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.