Home / 19,229.17-28,847.67-10,912.90

Finding the Fourth Proportional to 19,229.17, 28,847.67 and 10,912.90

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Solution

The fourth proportional to 19,229.17, 28,847.67 and 10,912.90 is: 16,371.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.17 : 28,847.67 = 10,912.90 : x
  2. Step 2: Convert to fraction form
    19,229.17/28,847.67 = 10,912.90/x
  3. Step 3: Cross multiply
    19,229.17x = 28,847.67 × 10,912.90
  4. Step 4: Simplify right side
    19,229.17x = 314,811,737.94
  5. Step 5: Solve for x
    x = 314,811,737.94/19,229.17
  6. Step 6: Final answer
    x = 16,371.57

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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.