Home / 21,195.86-29,258.14-18,199.66

Finding the Fourth Proportional to 21,195.86, 29,258.14 and 18,199.66

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Solution

The fourth proportional to 21,195.86, 29,258.14 and 18,199.66 is: 25,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.86 : 29,258.14 = 18,199.66 : x
  2. Step 2: Convert to fraction form
    21,195.86/29,258.14 = 18,199.66/x
  3. Step 3: Cross multiply
    21,195.86x = 29,258.14 × 18,199.66
  4. Step 4: Simplify right side
    21,195.86x = 532,488,200.23
  5. Step 5: Solve for x
    x = 532,488,200.23/21,195.86
  6. Step 6: Final answer
    x = 25,122.27

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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.