Home / 31,822.99-43,915.97-19,893.35

Finding the Fourth Proportional to 31,822.99, 43,915.97 and 19,893.35

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Solution

The fourth proportional to 31,822.99, 43,915.97 and 19,893.35 is: 27,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.99 : 43,915.97 = 19,893.35 : x
  2. Step 2: Convert to fraction form
    31,822.99/43,915.97 = 19,893.35/x
  3. Step 3: Cross multiply
    31,822.99x = 43,915.97 × 19,893.35
  4. Step 4: Simplify right side
    31,822.99x = 873,635,761.80
  5. Step 5: Solve for x
    x = 873,635,761.80/31,822.99
  6. Step 6: Final answer
    x = 27,452.98

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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.