Home / 22,556.88-31,129.23-12,996.02

Finding the Fourth Proportional to 22,556.88, 31,129.23 and 12,996.02

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Solution

The fourth proportional to 22,556.88, 31,129.23 and 12,996.02 is: 17,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,556.88 : 31,129.23 = 12,996.02 : x
  2. Step 2: Convert to fraction form
    22,556.88/31,129.23 = 12,996.02/x
  3. Step 3: Cross multiply
    22,556.88x = 31,129.23 × 12,996.02
  4. Step 4: Simplify right side
    22,556.88x = 404,555,875.04
  5. Step 5: Solve for x
    x = 404,555,875.04/22,556.88
  6. Step 6: Final answer
    x = 17,934.93

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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.