Home / 20,530.41-30,795.26-11,168.21

Finding the Fourth Proportional to 20,530.41, 30,795.26 and 11,168.21

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Solution

The fourth proportional to 20,530.41, 30,795.26 and 11,168.21 is: 16,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.41 : 30,795.26 = 11,168.21 : x
  2. Step 2: Convert to fraction form
    20,530.41/30,795.26 = 11,168.21/x
  3. Step 3: Cross multiply
    20,530.41x = 30,795.26 × 11,168.21
  4. Step 4: Simplify right side
    20,530.41x = 343,927,720.87
  5. Step 5: Solve for x
    x = 343,927,720.87/20,530.41
  6. Step 6: Final answer
    x = 16,752.11

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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.