Home / 28,188.97-42,283.43-11,549.03

Finding the Fourth Proportional to 28,188.97, 42,283.43 and 11,549.03

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Solution

The fourth proportional to 28,188.97, 42,283.43 and 11,549.03 is: 17,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.97 : 42,283.43 = 11,549.03 : x
  2. Step 2: Convert to fraction form
    28,188.97/42,283.43 = 11,549.03/x
  3. Step 3: Cross multiply
    28,188.97x = 42,283.43 × 11,549.03
  4. Step 4: Simplify right side
    28,188.97x = 488,332,772.13
  5. Step 5: Solve for x
    x = 488,332,772.13/28,188.97
  6. Step 6: Final answer
    x = 17,323.54

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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.