Home / 20,208.42-27,887.68-11,712.19

Finding the Fourth Proportional to 20,208.42, 27,887.68 and 11,712.19

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Solution

The fourth proportional to 20,208.42, 27,887.68 and 11,712.19 is: 16,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.42 : 27,887.68 = 11,712.19 : x
  2. Step 2: Convert to fraction form
    20,208.42/27,887.68 = 11,712.19/x
  3. Step 3: Cross multiply
    20,208.42x = 27,887.68 × 11,712.19
  4. Step 4: Simplify right side
    20,208.42x = 326,625,748.26
  5. Step 5: Solve for x
    x = 326,625,748.26/20,208.42
  6. Step 6: Final answer
    x = 16,162.85

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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.