Home / 16,188.66-22,195.62-15,989.40

Finding the Fourth Proportional to 16,188.66, 22,195.62 and 15,989.40

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Solution

The fourth proportional to 16,188.66, 22,195.62 and 15,989.40 is: 21,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.66 : 22,195.62 = 15,989.40 : x
  2. Step 2: Convert to fraction form
    16,188.66/22,195.62 = 15,989.40/x
  3. Step 3: Cross multiply
    16,188.66x = 22,195.62 × 15,989.40
  4. Step 4: Simplify right side
    16,188.66x = 354,894,646.43
  5. Step 5: Solve for x
    x = 354,894,646.43/16,188.66
  6. Step 6: Final answer
    x = 21,922.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.