Home / 20,588.99-28,413.38-11,636.87

Finding the Fourth Proportional to 20,588.99, 28,413.38 and 11,636.87

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Solution

The fourth proportional to 20,588.99, 28,413.38 and 11,636.87 is: 16,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.99 : 28,413.38 = 11,636.87 : x
  2. Step 2: Convert to fraction form
    20,588.99/28,413.38 = 11,636.87/x
  3. Step 3: Cross multiply
    20,588.99x = 28,413.38 × 11,636.87
  4. Step 4: Simplify right side
    20,588.99x = 330,642,696.35
  5. Step 5: Solve for x
    x = 330,642,696.35/20,588.99
  6. Step 6: Final answer
    x = 16,059.20

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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.