Home / 20,499.29-30,756.68-8,028.22

Finding the Fourth Proportional to 20,499.29, 30,756.68 and 8,028.22

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Solution

The fourth proportional to 20,499.29, 30,756.68 and 8,028.22 is: 12,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.29 : 30,756.68 = 8,028.22 : x
  2. Step 2: Convert to fraction form
    20,499.29/30,756.68 = 8,028.22/x
  3. Step 3: Cross multiply
    20,499.29x = 30,756.68 × 8,028.22
  4. Step 4: Simplify right side
    20,499.29x = 246,921,393.51
  5. Step 5: Solve for x
    x = 246,921,393.51/20,499.29
  6. Step 6: Final answer
    x = 12,045.36

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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.