Home / 20,476.20-30,714.30-7,329.60

Finding the Fourth Proportional to 20,476.20, 30,714.30 and 7,329.60

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Solution

The fourth proportional to 20,476.20, 30,714.30 and 7,329.60 is: 10,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.20 : 30,714.30 = 7,329.60 : x
  2. Step 2: Convert to fraction form
    20,476.20/30,714.30 = 7,329.60/x
  3. Step 3: Cross multiply
    20,476.20x = 30,714.30 × 7,329.60
  4. Step 4: Simplify right side
    20,476.20x = 225,123,533.28
  5. Step 5: Solve for x
    x = 225,123,533.28/20,476.20
  6. Step 6: Final answer
    x = 10,994.40

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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.