Home / 20,022.12-27,631.32-13,296.15

Finding the Fourth Proportional to 20,022.12, 27,631.32 and 13,296.15

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Solution

The fourth proportional to 20,022.12, 27,631.32 and 13,296.15 is: 18,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.12 : 27,631.32 = 13,296.15 : x
  2. Step 2: Convert to fraction form
    20,022.12/27,631.32 = 13,296.15/x
  3. Step 3: Cross multiply
    20,022.12x = 27,631.32 × 13,296.15
  4. Step 4: Simplify right side
    20,022.12x = 367,390,175.42
  5. Step 5: Solve for x
    x = 367,390,175.42/20,022.12
  6. Step 6: Final answer
    x = 18,349.21

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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.