Home / 20,015.91-30,026.90-6,872.04

Finding the Fourth Proportional to 20,015.91, 30,026.90 and 6,872.04

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Solution

The fourth proportional to 20,015.91, 30,026.90 and 6,872.04 is: 10,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.91 : 30,026.90 = 6,872.04 : x
  2. Step 2: Convert to fraction form
    20,015.91/30,026.90 = 6,872.04/x
  3. Step 3: Cross multiply
    20,015.91x = 30,026.90 × 6,872.04
  4. Step 4: Simplify right side
    20,015.91x = 206,346,075.06
  5. Step 5: Solve for x
    x = 206,346,075.06/20,015.91
  6. Step 6: Final answer
    x = 10,309.10

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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.