Home / 21,196.86-29,259.52-18,200.66

Finding the Fourth Proportional to 21,196.86, 29,259.52 and 18,200.66

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Solution

The fourth proportional to 21,196.86, 29,259.52 and 18,200.66 is: 25,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.86 : 29,259.52 = 18,200.66 : x
  2. Step 2: Convert to fraction form
    21,196.86/29,259.52 = 18,200.66/x
  3. Step 3: Cross multiply
    21,196.86x = 29,259.52 × 18,200.66
  4. Step 4: Simplify right side
    21,196.86x = 532,542,575.28
  5. Step 5: Solve for x
    x = 532,542,575.28/21,196.86
  6. Step 6: Final answer
    x = 25,123.65

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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.