Home / 17,118.20-23,629.62-12,881.58

Finding the Fourth Proportional to 17,118.20, 23,629.62 and 12,881.58

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Solution

The fourth proportional to 17,118.20, 23,629.62 and 12,881.58 is: 17,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.20 : 23,629.62 = 12,881.58 : x
  2. Step 2: Convert to fraction form
    17,118.20/23,629.62 = 12,881.58/x
  3. Step 3: Cross multiply
    17,118.20x = 23,629.62 × 12,881.58
  4. Step 4: Simplify right side
    17,118.20x = 304,386,840.40
  5. Step 5: Solve for x
    x = 304,386,840.40/17,118.20
  6. Step 6: Final answer
    x = 17,781.47

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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.