Home / 20,658.66-28,505.43-11,704.32

Finding the Fourth Proportional to 20,658.66, 28,505.43 and 11,704.32

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Solution

The fourth proportional to 20,658.66, 28,505.43 and 11,704.32 is: 16,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.66 : 28,505.43 = 11,704.32 : x
  2. Step 2: Convert to fraction form
    20,658.66/28,505.43 = 11,704.32/x
  3. Step 3: Cross multiply
    20,658.66x = 28,505.43 × 11,704.32
  4. Step 4: Simplify right side
    20,658.66x = 333,636,674.46
  5. Step 5: Solve for x
    x = 333,636,674.46/20,658.66
  6. Step 6: Final answer
    x = 16,149.97

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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.