Home / 20,616.36-28,453.26-11,545.17

Finding the Fourth Proportional to 20,616.36, 28,453.26 and 11,545.17

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Solution

The fourth proportional to 20,616.36, 28,453.26 and 11,545.17 is: 15,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.36 : 28,453.26 = 11,545.17 : x
  2. Step 2: Convert to fraction form
    20,616.36/28,453.26 = 11,545.17/x
  3. Step 3: Cross multiply
    20,616.36x = 28,453.26 × 11,545.17
  4. Step 4: Simplify right side
    20,616.36x = 328,497,737.16
  5. Step 5: Solve for x
    x = 328,497,737.16/20,616.36
  6. Step 6: Final answer
    x = 15,933.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.