Home / 20,171.36-30,263.18-10,317.56

Finding the Fourth Proportional to 20,171.36, 30,263.18 and 10,317.56

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Solution

The fourth proportional to 20,171.36, 30,263.18 and 10,317.56 is: 15,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.36 : 30,263.18 = 10,317.56 : x
  2. Step 2: Convert to fraction form
    20,171.36/30,263.18 = 10,317.56/x
  3. Step 3: Cross multiply
    20,171.36x = 30,263.18 × 10,317.56
  4. Step 4: Simplify right side
    20,171.36x = 312,242,175.44
  5. Step 5: Solve for x
    x = 312,242,175.44/20,171.36
  6. Step 6: Final answer
    x = 15,479.48

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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.