Home / 28,191.22-42,288.82-11,324.24

Finding the Fourth Proportional to 28,191.22, 42,288.82 and 11,324.24

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Solution

The fourth proportional to 28,191.22, 42,288.82 and 11,324.24 is: 16,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.22 : 42,288.82 = 11,324.24 : x
  2. Step 2: Convert to fraction form
    28,191.22/42,288.82 = 11,324.24/x
  3. Step 3: Cross multiply
    28,191.22x = 42,288.82 × 11,324.24
  4. Step 4: Simplify right side
    28,191.22x = 478,888,747.00
  5. Step 5: Solve for x
    x = 478,888,747.00/28,191.22
  6. Step 6: Final answer
    x = 16,987.16

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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.