Home / 20,727.87-28,603.49-11,296.23

Finding the Fourth Proportional to 20,727.87, 28,603.49 and 11,296.23

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Solution

The fourth proportional to 20,727.87, 28,603.49 and 11,296.23 is: 15,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.87 : 28,603.49 = 11,296.23 : x
  2. Step 2: Convert to fraction form
    20,727.87/28,603.49 = 11,296.23/x
  3. Step 3: Cross multiply
    20,727.87x = 28,603.49 × 11,296.23
  4. Step 4: Simplify right side
    20,727.87x = 323,111,545.36
  5. Step 5: Solve for x
    x = 323,111,545.36/20,727.87
  6. Step 6: Final answer
    x = 15,588.27

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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.