Home / 20,375.03-28,117.62-11,883.03

Finding the Fourth Proportional to 20,375.03, 28,117.62 and 11,883.03

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Solution

The fourth proportional to 20,375.03, 28,117.62 and 11,883.03 is: 16,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.03 : 28,117.62 = 11,883.03 : x
  2. Step 2: Convert to fraction form
    20,375.03/28,117.62 = 11,883.03/x
  3. Step 3: Cross multiply
    20,375.03x = 28,117.62 × 11,883.03
  4. Step 4: Simplify right side
    20,375.03x = 334,122,521.99
  5. Step 5: Solve for x
    x = 334,122,521.99/20,375.03
  6. Step 6: Final answer
    x = 16,398.63

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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.