Home / 28,512.25-42,770.76-10,505.38

Finding the Fourth Proportional to 28,512.25, 42,770.76 and 10,505.38

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Solution

The fourth proportional to 28,512.25, 42,770.76 and 10,505.38 is: 15,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.25 : 42,770.76 = 10,505.38 : x
  2. Step 2: Convert to fraction form
    28,512.25/42,770.76 = 10,505.38/x
  3. Step 3: Cross multiply
    28,512.25x = 42,770.76 × 10,505.38
  4. Step 4: Simplify right side
    28,512.25x = 449,322,872.84
  5. Step 5: Solve for x
    x = 449,322,872.84/28,512.25
  6. Step 6: Final answer
    x = 15,758.94

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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.