Home / 19,078.61-28,617.60-5,227.61

Finding the Fourth Proportional to 19,078.61, 28,617.60 and 5,227.61

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Solution

The fourth proportional to 19,078.61, 28,617.60 and 5,227.61 is: 7,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.61 : 28,617.60 = 5,227.61 : x
  2. Step 2: Convert to fraction form
    19,078.61/28,617.60 = 5,227.61/x
  3. Step 3: Cross multiply
    19,078.61x = 28,617.60 × 5,227.61
  4. Step 4: Simplify right side
    19,078.61x = 149,601,528.45
  5. Step 5: Solve for x
    x = 149,601,528.45/19,078.61
  6. Step 6: Final answer
    x = 7,841.32

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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.