Home / 28,512.82-42,741.30-15,868.60

Finding the Fourth Proportional to 28,512.82, 42,741.30 and 15,868.60

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Solution

The fourth proportional to 28,512.82, 42,741.30 and 15,868.60 is: 23,787.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.82 : 42,741.30 = 15,868.60 : x
  2. Step 2: Convert to fraction form
    28,512.82/42,741.30 = 15,868.60/x
  3. Step 3: Cross multiply
    28,512.82x = 42,741.30 × 15,868.60
  4. Step 4: Simplify right side
    28,512.82x = 678,244,593.18
  5. Step 5: Solve for x
    x = 678,244,593.18/28,512.82
  6. Step 6: Final answer
    x = 23,787.36

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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.