Home / 20,288.28-30,434.15-5,297.39

Finding the Fourth Proportional to 20,288.28, 30,434.15 and 5,297.39

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Solution

The fourth proportional to 20,288.28, 30,434.15 and 5,297.39 is: 7,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.28 : 30,434.15 = 5,297.39 : x
  2. Step 2: Convert to fraction form
    20,288.28/30,434.15 = 5,297.39/x
  3. Step 3: Cross multiply
    20,288.28x = 30,434.15 × 5,297.39
  4. Step 4: Simplify right side
    20,288.28x = 161,221,561.87
  5. Step 5: Solve for x
    x = 161,221,561.87/20,288.28
  6. Step 6: Final answer
    x = 7,946.54

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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.