Home / 20,261.10-30,291.74-17,175.54

Finding the Fourth Proportional to 20,261.10, 30,291.74 and 17,175.54

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Solution

The fourth proportional to 20,261.10, 30,291.74 and 17,175.54 is: 25,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.10 : 30,291.74 = 17,175.54 : x
  2. Step 2: Convert to fraction form
    20,261.10/30,291.74 = 17,175.54/x
  3. Step 3: Cross multiply
    20,261.10x = 30,291.74 × 17,175.54
  4. Step 4: Simplify right side
    20,261.10x = 520,276,992.04
  5. Step 5: Solve for x
    x = 520,276,992.04/20,261.10
  6. Step 6: Final answer
    x = 25,678.62

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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.