Home / 35,715.96-53,578.08-13,545.90

Finding the Fourth Proportional to 35,715.96, 53,578.08 and 13,545.90

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Solution

The fourth proportional to 35,715.96, 53,578.08 and 13,545.90 is: 20,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,715.96 : 53,578.08 = 13,545.90 : x
  2. Step 2: Convert to fraction form
    35,715.96/53,578.08 = 13,545.90/x
  3. Step 3: Cross multiply
    35,715.96x = 53,578.08 × 13,545.90
  4. Step 4: Simplify right side
    35,715.96x = 725,763,313.87
  5. Step 5: Solve for x
    x = 725,763,313.87/35,715.96
  6. Step 6: Final answer
    x = 20,320.42

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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.