Home / 19,431.54-29,147.49-5,580.54

Finding the Fourth Proportional to 19,431.54, 29,147.49 and 5,580.54

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Solution

The fourth proportional to 19,431.54, 29,147.49 and 5,580.54 is: 8,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.54 : 29,147.49 = 5,580.54 : x
  2. Step 2: Convert to fraction form
    19,431.54/29,147.49 = 5,580.54/x
  3. Step 3: Cross multiply
    19,431.54x = 29,147.49 × 5,580.54
  4. Step 4: Simplify right side
    19,431.54x = 162,658,733.84
  5. Step 5: Solve for x
    x = 162,658,733.84/19,431.54
  6. Step 6: Final answer
    x = 8,370.86

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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.