Home / 31,985.43-47,915.79-19,474.44

Finding the Fourth Proportional to 31,985.43, 47,915.79 and 19,474.44

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Solution

The fourth proportional to 31,985.43, 47,915.79 and 19,474.44 is: 29,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.43 : 47,915.79 = 19,474.44 : x
  2. Step 2: Convert to fraction form
    31,985.43/47,915.79 = 19,474.44/x
  3. Step 3: Cross multiply
    31,985.43x = 47,915.79 × 19,474.44
  4. Step 4: Simplify right side
    31,985.43x = 933,133,177.41
  5. Step 5: Solve for x
    x = 933,133,177.41/31,985.43
  6. Step 6: Final answer
    x = 29,173.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.