Home / 18,650.45-28,077.77-17,017.49

Finding the Fourth Proportional to 18,650.45, 28,077.77 and 17,017.49

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Solution

The fourth proportional to 18,650.45, 28,077.77 and 17,017.49 is: 25,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.45 : 28,077.77 = 17,017.49 : x
  2. Step 2: Convert to fraction form
    18,650.45/28,077.77 = 17,017.49/x
  3. Step 3: Cross multiply
    18,650.45x = 28,077.77 × 17,017.49
  4. Step 4: Simplify right side
    18,650.45x = 477,813,170.20
  5. Step 5: Solve for x
    x = 477,813,170.20/18,650.45
  6. Step 6: Final answer
    x = 25,619.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.