Home / 20,203.08-30,305.10-6,876.03

Finding the Fourth Proportional to 20,203.08, 30,305.10 and 6,876.03

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Solution

The fourth proportional to 20,203.08, 30,305.10 and 6,876.03 is: 10,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.08 : 30,305.10 = 6,876.03 : x
  2. Step 2: Convert to fraction form
    20,203.08/30,305.10 = 6,876.03/x
  3. Step 3: Cross multiply
    20,203.08x = 30,305.10 × 6,876.03
  4. Step 4: Simplify right side
    20,203.08x = 208,378,776.75
  5. Step 5: Solve for x
    x = 208,378,776.75/20,203.08
  6. Step 6: Final answer
    x = 10,314.21

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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.