Home / 31,822.49-43,915.28-19,892.85

Finding the Fourth Proportional to 31,822.49, 43,915.28 and 19,892.85

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Solution

The fourth proportional to 31,822.49, 43,915.28 and 19,892.85 is: 27,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.49 : 43,915.28 = 19,892.85 : x
  2. Step 2: Convert to fraction form
    31,822.49/43,915.28 = 19,892.85/x
  3. Step 3: Cross multiply
    31,822.49x = 43,915.28 × 19,892.85
  4. Step 4: Simplify right side
    31,822.49x = 873,599,978.28
  5. Step 5: Solve for x
    x = 873,599,978.28/31,822.49
  6. Step 6: Final answer
    x = 27,452.29

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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.