Home / 18,217.76-27,175.69-17,680.64

Finding the Fourth Proportional to 18,217.76, 27,175.69 and 17,680.64

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Solution

The fourth proportional to 18,217.76, 27,175.69 and 17,680.64 is: 26,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.76 : 27,175.69 = 17,680.64 : x
  2. Step 2: Convert to fraction form
    18,217.76/27,175.69 = 17,680.64/x
  3. Step 3: Cross multiply
    18,217.76x = 27,175.69 × 17,680.64
  4. Step 4: Simplify right side
    18,217.76x = 480,483,591.64
  5. Step 5: Solve for x
    x = 480,483,591.64/18,217.76
  6. Step 6: Final answer
    x = 26,374.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.