Home / 20,329.37-28,054.91-11,377.85

Finding the Fourth Proportional to 20,329.37, 28,054.91 and 11,377.85

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Solution

The fourth proportional to 20,329.37, 28,054.91 and 11,377.85 is: 15,701.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.37 : 28,054.91 = 11,377.85 : x
  2. Step 2: Convert to fraction form
    20,329.37/28,054.91 = 11,377.85/x
  3. Step 3: Cross multiply
    20,329.37x = 28,054.91 × 11,377.85
  4. Step 4: Simplify right side
    20,329.37x = 319,204,570.99
  5. Step 5: Solve for x
    x = 319,204,570.99/20,329.37
  6. Step 6: Final answer
    x = 15,701.65

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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.