Home / 28,193.88-42,288.42-11,549.16

Finding the Fourth Proportional to 28,193.88, 42,288.42 and 11,549.16

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Solution

The fourth proportional to 28,193.88, 42,288.42 and 11,549.16 is: 17,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.88 : 42,288.42 = 11,549.16 : x
  2. Step 2: Convert to fraction form
    28,193.88/42,288.42 = 11,549.16/x
  3. Step 3: Cross multiply
    28,193.88x = 42,288.42 × 11,549.16
  4. Step 4: Simplify right side
    28,193.88x = 488,395,728.73
  5. Step 5: Solve for x
    x = 488,395,728.73/28,193.88
  6. Step 6: Final answer
    x = 17,322.76

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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.