Home / 20,396.15-28,132.09-17,703.39

Finding the Fourth Proportional to 20,396.15, 28,132.09 and 17,703.39

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Solution

The fourth proportional to 20,396.15, 28,132.09 and 17,703.39 is: 24,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.15 : 28,132.09 = 17,703.39 : x
  2. Step 2: Convert to fraction form
    20,396.15/28,132.09 = 17,703.39/x
  3. Step 3: Cross multiply
    20,396.15x = 28,132.09 × 17,703.39
  4. Step 4: Simplify right side
    20,396.15x = 498,033,360.79
  5. Step 5: Solve for x
    x = 498,033,360.79/20,396.15
  6. Step 6: Final answer
    x = 24,418.01

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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.