Home / 20,235.18-27,914.14-13,518.66

Finding the Fourth Proportional to 20,235.18, 27,914.14 and 13,518.66

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Solution

The fourth proportional to 20,235.18, 27,914.14 and 13,518.66 is: 18,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.18 : 27,914.14 = 13,518.66 : x
  2. Step 2: Convert to fraction form
    20,235.18/27,914.14 = 13,518.66/x
  3. Step 3: Cross multiply
    20,235.18x = 27,914.14 × 13,518.66
  4. Step 4: Simplify right side
    20,235.18x = 377,361,767.85
  5. Step 5: Solve for x
    x = 377,361,767.85/20,235.18
  6. Step 6: Final answer
    x = 18,648.80

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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.