Home / 20,292.20-30,438.30-11,544.20

Finding the Fourth Proportional to 20,292.20, 30,438.30 and 11,544.20

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Solution

The fourth proportional to 20,292.20, 30,438.30 and 11,544.20 is: 17,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.20 : 30,438.30 = 11,544.20 : x
  2. Step 2: Convert to fraction form
    20,292.20/30,438.30 = 11,544.20/x
  3. Step 3: Cross multiply
    20,292.20x = 30,438.30 × 11,544.20
  4. Step 4: Simplify right side
    20,292.20x = 351,385,822.86
  5. Step 5: Solve for x
    x = 351,385,822.86/20,292.20
  6. Step 6: Final answer
    x = 17,316.30

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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.