Home / 31,323.75-47,008.97-12,603.94

Finding the Fourth Proportional to 31,323.75, 47,008.97 and 12,603.94

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Solution

The fourth proportional to 31,323.75, 47,008.97 and 12,603.94 is: 18,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,323.75 : 47,008.97 = 12,603.94 : x
  2. Step 2: Convert to fraction form
    31,323.75/47,008.97 = 12,603.94/x
  3. Step 3: Cross multiply
    31,323.75x = 47,008.97 × 12,603.94
  4. Step 4: Simplify right side
    31,323.75x = 592,498,472.44
  5. Step 5: Solve for x
    x = 592,498,472.44/31,323.75
  6. Step 6: Final answer
    x = 18,915.31

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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.