Home / 20,308.59-30,427.49-11,863.26

Finding the Fourth Proportional to 20,308.59, 30,427.49 and 11,863.26

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Solution

The fourth proportional to 20,308.59, 30,427.49 and 11,863.26 is: 17,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.59 : 30,427.49 = 11,863.26 : x
  2. Step 2: Convert to fraction form
    20,308.59/30,427.49 = 11,863.26/x
  3. Step 3: Cross multiply
    20,308.59x = 30,427.49 × 11,863.26
  4. Step 4: Simplify right side
    20,308.59x = 360,969,165.70
  5. Step 5: Solve for x
    x = 360,969,165.70/20,308.59
  6. Step 6: Final answer
    x = 17,774.21

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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.