Home / 20,116.96-30,153.52-17,186.40

Finding the Fourth Proportional to 20,116.96, 30,153.52 and 17,186.40

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Solution

The fourth proportional to 20,116.96, 30,153.52 and 17,186.40 is: 25,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.96 : 30,153.52 = 17,186.40 : x
  2. Step 2: Convert to fraction form
    20,116.96/30,153.52 = 17,186.40/x
  3. Step 3: Cross multiply
    20,116.96x = 30,153.52 × 17,186.40
  4. Step 4: Simplify right side
    20,116.96x = 518,230,456.13
  5. Step 5: Solve for x
    x = 518,230,456.13/20,116.96
  6. Step 6: Final answer
    x = 25,760.87

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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.