Home / 20,175.48-30,276.18-11,416.68

Finding the Fourth Proportional to 20,175.48, 30,276.18 and 11,416.68

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Solution

The fourth proportional to 20,175.48, 30,276.18 and 11,416.68 is: 17,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.48 : 30,276.18 = 11,416.68 : x
  2. Step 2: Convert to fraction form
    20,175.48/30,276.18 = 11,416.68/x
  3. Step 3: Cross multiply
    20,175.48x = 30,276.18 × 11,416.68
  4. Step 4: Simplify right side
    20,175.48x = 345,653,458.68
  5. Step 5: Solve for x
    x = 345,653,458.68/20,175.48
  6. Step 6: Final answer
    x = 17,132.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.