Home / 20,028.30-30,036.22-6,877.56

Finding the Fourth Proportional to 20,028.30, 30,036.22 and 6,877.56

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Solution

The fourth proportional to 20,028.30, 30,036.22 and 6,877.56 is: 10,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.30 : 30,036.22 = 6,877.56 : x
  2. Step 2: Convert to fraction form
    20,028.30/30,036.22 = 6,877.56/x
  3. Step 3: Cross multiply
    20,028.30x = 30,036.22 × 6,877.56
  4. Step 4: Simplify right side
    20,028.30x = 206,575,905.22
  5. Step 5: Solve for x
    x = 206,575,905.22/20,028.30
  6. Step 6: Final answer
    x = 10,314.20

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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.