Home / 20,216.64-27,910.54-13,513.62

Finding the Fourth Proportional to 20,216.64, 27,910.54 and 13,513.62

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Solution

The fourth proportional to 20,216.64, 27,910.54 and 13,513.62 is: 18,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.64 : 27,910.54 = 13,513.62 : x
  2. Step 2: Convert to fraction form
    20,216.64/27,910.54 = 13,513.62/x
  3. Step 3: Cross multiply
    20,216.64x = 27,910.54 × 13,513.62
  4. Step 4: Simplify right side
    20,216.64x = 377,172,431.55
  5. Step 5: Solve for x
    x = 377,172,431.55/20,216.64
  6. Step 6: Final answer
    x = 18,656.53

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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.