Home / 19,972.27-27,556.80-12,209.12

Finding the Fourth Proportional to 19,972.27, 27,556.80 and 12,209.12

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Solution

The fourth proportional to 19,972.27, 27,556.80 and 12,209.12 is: 16,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.27 : 27,556.80 = 12,209.12 : x
  2. Step 2: Convert to fraction form
    19,972.27/27,556.80 = 12,209.12/x
  3. Step 3: Cross multiply
    19,972.27x = 27,556.80 × 12,209.12
  4. Step 4: Simplify right side
    19,972.27x = 336,444,278.02
  5. Step 5: Solve for x
    x = 336,444,278.02/19,972.27
  6. Step 6: Final answer
    x = 16,845.57

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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.