Home / 28,150.38-42,230.68-9,428.58

Finding the Fourth Proportional to 28,150.38, 42,230.68 and 9,428.58

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Solution

The fourth proportional to 28,150.38, 42,230.68 and 9,428.58 is: 14,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.38 : 42,230.68 = 9,428.58 : x
  2. Step 2: Convert to fraction form
    28,150.38/42,230.68 = 9,428.58/x
  3. Step 3: Cross multiply
    28,150.38x = 42,230.68 × 9,428.58
  4. Step 4: Simplify right side
    28,150.38x = 398,175,344.83
  5. Step 5: Solve for x
    x = 398,175,344.83/28,150.38
  6. Step 6: Final answer
    x = 14,144.58

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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.