Home / 22,129.92-33,167.52-18,987.84

Finding the Fourth Proportional to 22,129.92, 33,167.52 and 18,987.84

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Solution

The fourth proportional to 22,129.92, 33,167.52 and 18,987.84 is: 28,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.92 : 33,167.52 = 18,987.84 : x
  2. Step 2: Convert to fraction form
    22,129.92/33,167.52 = 18,987.84/x
  3. Step 3: Cross multiply
    22,129.92x = 33,167.52 × 18,987.84
  4. Step 4: Simplify right side
    22,129.92x = 629,779,562.96
  5. Step 5: Solve for x
    x = 629,779,562.96/22,129.92
  6. Step 6: Final answer
    x = 28,458.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.