Home / 20,026.05-30,039.77-6,878.32

Finding the Fourth Proportional to 20,026.05, 30,039.77 and 6,878.32

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Solution

The fourth proportional to 20,026.05, 30,039.77 and 6,878.32 is: 10,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.05 : 30,039.77 = 6,878.32 : x
  2. Step 2: Convert to fraction form
    20,026.05/30,039.77 = 6,878.32/x
  3. Step 3: Cross multiply
    20,026.05x = 30,039.77 × 6,878.32
  4. Step 4: Simplify right side
    20,026.05x = 206,623,150.79
  5. Step 5: Solve for x
    x = 206,623,150.79/20,026.05
  6. Step 6: Final answer
    x = 10,317.72

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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.