Home / 20,201.14-27,878.52-11,703.64

Finding the Fourth Proportional to 20,201.14, 27,878.52 and 11,703.64

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Solution

The fourth proportional to 20,201.14, 27,878.52 and 11,703.64 is: 16,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.14 : 27,878.52 = 11,703.64 : x
  2. Step 2: Convert to fraction form
    20,201.14/27,878.52 = 11,703.64/x
  3. Step 3: Cross multiply
    20,201.14x = 27,878.52 × 11,703.64
  4. Step 4: Simplify right side
    20,201.14x = 326,280,161.81
  5. Step 5: Solve for x
    x = 326,280,161.81/20,201.14
  6. Step 6: Final answer
    x = 16,151.57

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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.