Home / 19,280.61-28,917.90-6,131.25

Finding the Fourth Proportional to 19,280.61, 28,917.90 and 6,131.25

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Solution

The fourth proportional to 19,280.61, 28,917.90 and 6,131.25 is: 9,195.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.61 : 28,917.90 = 6,131.25 : x
  2. Step 2: Convert to fraction form
    19,280.61/28,917.90 = 6,131.25/x
  3. Step 3: Cross multiply
    19,280.61x = 28,917.90 × 6,131.25
  4. Step 4: Simplify right side
    19,280.61x = 177,302,874.38
  5. Step 5: Solve for x
    x = 177,302,874.38/19,280.61
  6. Step 6: Final answer
    x = 9,195.92

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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.