Home / 20,435.94-28,184.66-17,256.60

Finding the Fourth Proportional to 20,435.94, 28,184.66 and 17,256.60

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Solution

The fourth proportional to 20,435.94, 28,184.66 and 17,256.60 is: 23,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.94 : 28,184.66 = 17,256.60 : x
  2. Step 2: Convert to fraction form
    20,435.94/28,184.66 = 17,256.60/x
  3. Step 3: Cross multiply
    20,435.94x = 28,184.66 × 17,256.60
  4. Step 4: Simplify right side
    20,435.94x = 486,371,403.76
  5. Step 5: Solve for x
    x = 486,371,403.76/20,435.94
  6. Step 6: Final answer
    x = 23,799.81

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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.