Home / 19,428.92-29,136.23-6,945.56

Finding the Fourth Proportional to 19,428.92, 29,136.23 and 6,945.56

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Solution

The fourth proportional to 19,428.92, 29,136.23 and 6,945.56 is: 10,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.92 : 29,136.23 = 6,945.56 : x
  2. Step 2: Convert to fraction form
    19,428.92/29,136.23 = 6,945.56/x
  3. Step 3: Cross multiply
    19,428.92x = 29,136.23 × 6,945.56
  4. Step 4: Simplify right side
    19,428.92x = 202,367,253.23
  5. Step 5: Solve for x
    x = 202,367,253.23/19,428.92
  6. Step 6: Final answer
    x = 10,415.78

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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.