Home / 31,933.80-47,847.98-19,415.95

Finding the Fourth Proportional to 31,933.80, 47,847.98 and 19,415.95

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Solution

The fourth proportional to 31,933.80, 47,847.98 and 19,415.95 is: 29,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,933.80 : 47,847.98 = 19,415.95 : x
  2. Step 2: Convert to fraction form
    31,933.80/47,847.98 = 19,415.95/x
  3. Step 3: Cross multiply
    31,933.80x = 47,847.98 × 19,415.95
  4. Step 4: Simplify right side
    31,933.80x = 929,013,916.20
  5. Step 5: Solve for x
    x = 929,013,916.20/31,933.80
  6. Step 6: Final answer
    x = 29,091.87

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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.