Home / 20,619.44-30,931.32-6,769.52

Finding the Fourth Proportional to 20,619.44, 30,931.32 and 6,769.52

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Solution

The fourth proportional to 20,619.44, 30,931.32 and 6,769.52 is: 10,154.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.44 : 30,931.32 = 6,769.52 : x
  2. Step 2: Convert to fraction form
    20,619.44/30,931.32 = 6,769.52/x
  3. Step 3: Cross multiply
    20,619.44x = 30,931.32 × 6,769.52
  4. Step 4: Simplify right side
    20,619.44x = 209,390,189.37
  5. Step 5: Solve for x
    x = 209,390,189.37/20,619.44
  6. Step 6: Final answer
    x = 10,154.99

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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.