Home / 27,658.11-38,158.35-16,321.93

Finding the Fourth Proportional to 27,658.11, 38,158.35 and 16,321.93

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Solution

The fourth proportional to 27,658.11, 38,158.35 and 16,321.93 is: 22,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658.11 : 38,158.35 = 16,321.93 : x
  2. Step 2: Convert to fraction form
    27,658.11/38,158.35 = 16,321.93/x
  3. Step 3: Cross multiply
    27,658.11x = 38,158.35 × 16,321.93
  4. Step 4: Simplify right side
    27,658.11x = 622,817,917.62
  5. Step 5: Solve for x
    x = 622,817,917.62/27,658.11
  6. Step 6: Final answer
    x = 22,518.46

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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.