Home / 28,551.42-42,820.20-11,902.41

Finding the Fourth Proportional to 28,551.42, 42,820.20 and 11,902.41

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Solution

The fourth proportional to 28,551.42, 42,820.20 and 11,902.41 is: 17,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.42 : 42,820.20 = 11,902.41 : x
  2. Step 2: Convert to fraction form
    28,551.42/42,820.20 = 11,902.41/x
  3. Step 3: Cross multiply
    28,551.42x = 42,820.20 × 11,902.41
  4. Step 4: Simplify right side
    28,551.42x = 509,663,576.68
  5. Step 5: Solve for x
    x = 509,663,576.68/28,551.42
  6. Step 6: Final answer
    x = 17,850.73

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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.