Home / 20,335.35-28,063.35-12,377.37

Finding the Fourth Proportional to 20,335.35, 28,063.35 and 12,377.37

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Solution

The fourth proportional to 20,335.35, 28,063.35 and 12,377.37 is: 17,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.35 : 28,063.35 = 12,377.37 : x
  2. Step 2: Convert to fraction form
    20,335.35/28,063.35 = 12,377.37/x
  3. Step 3: Cross multiply
    20,335.35x = 28,063.35 × 12,377.37
  4. Step 4: Simplify right side
    20,335.35x = 347,350,466.39
  5. Step 5: Solve for x
    x = 347,350,466.39/20,335.35
  6. Step 6: Final answer
    x = 17,081.12

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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.