Home / 36,022.40-54,057.90-21,215.60

Finding the Fourth Proportional to 36,022.40, 54,057.90 and 21,215.60

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Solution

The fourth proportional to 36,022.40, 54,057.90 and 21,215.60 is: 31,837.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,022.40 : 54,057.90 = 21,215.60 : x
  2. Step 2: Convert to fraction form
    36,022.40/54,057.90 = 21,215.60/x
  3. Step 3: Cross multiply
    36,022.40x = 54,057.90 × 21,215.60
  4. Step 4: Simplify right side
    36,022.40x = 1,146,870,783.24
  5. Step 5: Solve for x
    x = 1,146,870,783.24/36,022.40
  6. Step 6: Final answer
    x = 31,837.71

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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.