Home / 28,140.62-42,195.34-11,512.32

Finding the Fourth Proportional to 28,140.62, 42,195.34 and 11,512.32

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Solution

The fourth proportional to 28,140.62, 42,195.34 and 11,512.32 is: 17,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.62 : 42,195.34 = 11,512.32 : x
  2. Step 2: Convert to fraction form
    28,140.62/42,195.34 = 11,512.32/x
  3. Step 3: Cross multiply
    28,140.62x = 42,195.34 × 11,512.32
  4. Step 4: Simplify right side
    28,140.62x = 485,766,256.59
  5. Step 5: Solve for x
    x = 485,766,256.59/28,140.62
  6. Step 6: Final answer
    x = 17,262.10

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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.