Home / 20,148.60-27,801.94-11,195.24

Finding the Fourth Proportional to 20,148.60, 27,801.94 and 11,195.24

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Solution

The fourth proportional to 20,148.60, 27,801.94 and 11,195.24 is: 15,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.60 : 27,801.94 = 11,195.24 : x
  2. Step 2: Convert to fraction form
    20,148.60/27,801.94 = 11,195.24/x
  3. Step 3: Cross multiply
    20,148.60x = 27,801.94 × 11,195.24
  4. Step 4: Simplify right side
    20,148.60x = 311,249,390.77
  5. Step 5: Solve for x
    x = 311,249,390.77/20,148.60
  6. Step 6: Final answer
    x = 15,447.69

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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.