Home / 19,813.68-29,715.75-5,769.90

Finding the Fourth Proportional to 19,813.68, 29,715.75 and 5,769.90

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Solution

The fourth proportional to 19,813.68, 29,715.75 and 5,769.90 is: 8,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.68 : 29,715.75 = 5,769.90 : x
  2. Step 2: Convert to fraction form
    19,813.68/29,715.75 = 5,769.90/x
  3. Step 3: Cross multiply
    19,813.68x = 29,715.75 × 5,769.90
  4. Step 4: Simplify right side
    19,813.68x = 171,456,905.93
  5. Step 5: Solve for x
    x = 171,456,905.93/19,813.68
  6. Step 6: Final answer
    x = 8,653.46

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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.