Home / 28,287.67-42,431.50-7,227.75

Finding the Fourth Proportional to 28,287.67, 42,431.50 and 7,227.75

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Solution

The fourth proportional to 28,287.67, 42,431.50 and 7,227.75 is: 10,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.67 : 42,431.50 = 7,227.75 : x
  2. Step 2: Convert to fraction form
    28,287.67/42,431.50 = 7,227.75/x
  3. Step 3: Cross multiply
    28,287.67x = 42,431.50 × 7,227.75
  4. Step 4: Simplify right side
    28,287.67x = 306,684,237.99
  5. Step 5: Solve for x
    x = 306,684,237.99/28,287.67
  6. Step 6: Final answer
    x = 10,841.62

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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.