Home / 28,150.68-42,228.36-7,374

Finding the Fourth Proportional to 28,150.68, 42,228.36 and 7,374

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Solution

The fourth proportional to 28,150.68, 42,228.36 and 7,374 is: 11,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.68 : 42,228.36 = 7,374 : x
  2. Step 2: Convert to fraction form
    28,150.68/42,228.36 = 7,374/x
  3. Step 3: Cross multiply
    28,150.68x = 42,228.36 × 7,374
  4. Step 4: Simplify right side
    28,150.68x = 311,391,926.64
  5. Step 5: Solve for x
    x = 311,391,926.64/28,150.68
  6. Step 6: Final answer
    x = 11,061.61

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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.