Home / 19,255.90-28,882.62-8,155.66

Finding the Fourth Proportional to 19,255.90, 28,882.62 and 8,155.66

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Solution

The fourth proportional to 19,255.90, 28,882.62 and 8,155.66 is: 12,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.90 : 28,882.62 = 8,155.66 : x
  2. Step 2: Convert to fraction form
    19,255.90/28,882.62 = 8,155.66/x
  3. Step 3: Cross multiply
    19,255.90x = 28,882.62 × 8,155.66
  4. Step 4: Simplify right side
    19,255.90x = 235,556,828.63
  5. Step 5: Solve for x
    x = 235,556,828.63/19,255.90
  6. Step 6: Final answer
    x = 12,232.97

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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.