Home / 31,829.88-47,745.80-15,191.68

Finding the Fourth Proportional to 31,829.88, 47,745.80 and 15,191.68

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Solution

The fourth proportional to 31,829.88, 47,745.80 and 15,191.68 is: 22,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,829.88 : 47,745.80 = 15,191.68 : x
  2. Step 2: Convert to fraction form
    31,829.88/47,745.80 = 15,191.68/x
  3. Step 3: Cross multiply
    31,829.88x = 47,745.80 × 15,191.68
  4. Step 4: Simplify right side
    31,829.88x = 725,338,914.94
  5. Step 5: Solve for x
    x = 725,338,914.94/31,829.88
  6. Step 6: Final answer
    x = 22,787.99

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1.5x scale

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.