Home / 20,603.77-28,433.03-11,651.24

Finding the Fourth Proportional to 20,603.77, 28,433.03 and 11,651.24

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Solution

The fourth proportional to 20,603.77, 28,433.03 and 11,651.24 is: 16,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.77 : 28,433.03 = 11,651.24 : x
  2. Step 2: Convert to fraction form
    20,603.77/28,433.03 = 11,651.24/x
  3. Step 3: Cross multiply
    20,603.77x = 28,433.03 × 11,651.24
  4. Step 4: Simplify right side
    20,603.77x = 331,280,069.28
  5. Step 5: Solve for x
    x = 331,280,069.28/20,603.77
  6. Step 6: Final answer
    x = 16,078.62

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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.