Home / 20,432.68-30,632.44-7,277.88

Finding the Fourth Proportional to 20,432.68, 30,632.44 and 7,277.88

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Solution

The fourth proportional to 20,432.68, 30,632.44 and 7,277.88 is: 10,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.68 : 30,632.44 = 7,277.88 : x
  2. Step 2: Convert to fraction form
    20,432.68/30,632.44 = 7,277.88/x
  3. Step 3: Cross multiply
    20,432.68x = 30,632.44 × 7,277.88
  4. Step 4: Simplify right side
    20,432.68x = 222,939,222.43
  5. Step 5: Solve for x
    x = 222,939,222.43/20,432.68
  6. Step 6: Final answer
    x = 10,910.91

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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.