Home / 18,420.27-27,630.59-14,745.85

Finding the Fourth Proportional to 18,420.27, 27,630.59 and 14,745.85

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Solution

The fourth proportional to 18,420.27, 27,630.59 and 14,745.85 is: 22,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.27 : 27,630.59 = 14,745.85 : x
  2. Step 2: Convert to fraction form
    18,420.27/27,630.59 = 14,745.85/x
  3. Step 3: Cross multiply
    18,420.27x = 27,630.59 × 14,745.85
  4. Step 4: Simplify right side
    18,420.27x = 407,436,461.82
  5. Step 5: Solve for x
    x = 407,436,461.82/18,420.27
  6. Step 6: Final answer
    x = 22,118.93

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.