Home / 28,194.18-42,289.95-11,550.12

Finding the Fourth Proportional to 28,194.18, 42,289.95 and 11,550.12

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Solution

The fourth proportional to 28,194.18, 42,289.95 and 11,550.12 is: 17,324.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.18 : 42,289.95 = 11,550.12 : x
  2. Step 2: Convert to fraction form
    28,194.18/42,289.95 = 11,550.12/x
  3. Step 3: Cross multiply
    28,194.18x = 42,289.95 × 11,550.12
  4. Step 4: Simplify right side
    28,194.18x = 488,453,997.29
  5. Step 5: Solve for x
    x = 488,453,997.29/28,194.18
  6. Step 6: Final answer
    x = 17,324.64

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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.