Home / 20,410.72-30,624.84-11,057.32

Finding the Fourth Proportional to 20,410.72, 30,624.84 and 11,057.32

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Solution

The fourth proportional to 20,410.72, 30,624.84 and 11,057.32 is: 16,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.72 : 30,624.84 = 11,057.32 : x
  2. Step 2: Convert to fraction form
    20,410.72/30,624.84 = 11,057.32/x
  3. Step 3: Cross multiply
    20,410.72x = 30,624.84 × 11,057.32
  4. Step 4: Simplify right side
    20,410.72x = 338,628,655.83
  5. Step 5: Solve for x
    x = 338,628,655.83/20,410.72
  6. Step 6: Final answer
    x = 16,590.73

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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.