Home / 20,403.64-30,601.50-7,256.20

Finding the Fourth Proportional to 20,403.64, 30,601.50 and 7,256.20

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Solution

The fourth proportional to 20,403.64, 30,601.50 and 7,256.20 is: 10,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.64 : 30,601.50 = 7,256.20 : x
  2. Step 2: Convert to fraction form
    20,403.64/30,601.50 = 7,256.20/x
  3. Step 3: Cross multiply
    20,403.64x = 30,601.50 × 7,256.20
  4. Step 4: Simplify right side
    20,403.64x = 222,050,604.30
  5. Step 5: Solve for x
    x = 222,050,604.30/20,403.64
  6. Step 6: Final answer
    x = 10,882.89

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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.