Home / 20,022.68-27,631.64-11,639.18

Finding the Fourth Proportional to 20,022.68, 27,631.64 and 11,639.18

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Solution

The fourth proportional to 20,022.68, 27,631.64 and 11,639.18 is: 16,062.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.68 : 27,631.64 = 11,639.18 : x
  2. Step 2: Convert to fraction form
    20,022.68/27,631.64 = 11,639.18/x
  3. Step 3: Cross multiply
    20,022.68x = 27,631.64 × 11,639.18
  4. Step 4: Simplify right side
    20,022.68x = 321,609,573.46
  5. Step 5: Solve for x
    x = 321,609,573.46/20,022.68
  6. Step 6: Final answer
    x = 16,062.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.