Home / 19,285.28-28,916.92-11,499.56

Finding the Fourth Proportional to 19,285.28, 28,916.92 and 11,499.56

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Solution

The fourth proportional to 19,285.28, 28,916.92 and 11,499.56 is: 17,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.28 : 28,916.92 = 11,499.56 : x
  2. Step 2: Convert to fraction form
    19,285.28/28,916.92 = 11,499.56/x
  3. Step 3: Cross multiply
    19,285.28x = 28,916.92 × 11,499.56
  4. Step 4: Simplify right side
    19,285.28x = 332,531,856.56
  5. Step 5: Solve for x
    x = 332,531,856.56/19,285.28
  6. Step 6: Final answer
    x = 17,242.78

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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.