Home / 31,996.88-44,135.13-19,421.63

Finding the Fourth Proportional to 31,996.88, 44,135.13 and 19,421.63

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Solution

The fourth proportional to 31,996.88, 44,135.13 and 19,421.63 is: 26,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,996.88 : 44,135.13 = 19,421.63 : x
  2. Step 2: Convert to fraction form
    31,996.88/44,135.13 = 19,421.63/x
  3. Step 3: Cross multiply
    31,996.88x = 44,135.13 × 19,421.63
  4. Step 4: Simplify right side
    31,996.88x = 857,175,847.08
  5. Step 5: Solve for x
    x = 857,175,847.08/31,996.88
  6. Step 6: Final answer
    x = 26,789.36

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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.