Home / 28,577.44-42,859.24-11,928.45

Finding the Fourth Proportional to 28,577.44, 42,859.24 and 11,928.45

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Solution

The fourth proportional to 28,577.44, 42,859.24 and 11,928.45 is: 17,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.44 : 42,859.24 = 11,928.45 : x
  2. Step 2: Convert to fraction form
    28,577.44/42,859.24 = 11,928.45/x
  3. Step 3: Cross multiply
    28,577.44x = 42,859.24 × 11,928.45
  4. Step 4: Simplify right side
    28,577.44x = 511,244,241.74
  5. Step 5: Solve for x
    x = 511,244,241.74/28,577.44
  6. Step 6: Final answer
    x = 17,889.79

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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.