Home / 28,310.54-42,466.76-12,728.22

Finding the Fourth Proportional to 28,310.54, 42,466.76 and 12,728.22

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Solution

The fourth proportional to 28,310.54, 42,466.76 and 12,728.22 is: 19,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.54 : 42,466.76 = 12,728.22 : x
  2. Step 2: Convert to fraction form
    28,310.54/42,466.76 = 12,728.22/x
  3. Step 3: Cross multiply
    28,310.54x = 42,466.76 × 12,728.22
  4. Step 4: Simplify right side
    28,310.54x = 540,526,263.97
  5. Step 5: Solve for x
    x = 540,526,263.97/28,310.54
  6. Step 6: Final answer
    x = 19,092.76

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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.