Home / 19,120.34-28,669.31-5,789.38

Finding the Fourth Proportional to 19,120.34, 28,669.31 and 5,789.38

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Solution

The fourth proportional to 19,120.34, 28,669.31 and 5,789.38 is: 8,680.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.34 : 28,669.31 = 5,789.38 : x
  2. Step 2: Convert to fraction form
    19,120.34/28,669.31 = 5,789.38/x
  3. Step 3: Cross multiply
    19,120.34x = 28,669.31 × 5,789.38
  4. Step 4: Simplify right side
    19,120.34x = 165,977,529.93
  5. Step 5: Solve for x
    x = 165,977,529.93/19,120.34
  6. Step 6: Final answer
    x = 8,680.68

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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.