Home / 19,820.38-29,743.43-8,586.69

Finding the Fourth Proportional to 19,820.38, 29,743.43 and 8,586.69

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Solution

The fourth proportional to 19,820.38, 29,743.43 and 8,586.69 is: 12,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.38 : 29,743.43 = 8,586.69 : x
  2. Step 2: Convert to fraction form
    19,820.38/29,743.43 = 8,586.69/x
  3. Step 3: Cross multiply
    19,820.38x = 29,743.43 × 8,586.69
  4. Step 4: Simplify right side
    19,820.38x = 255,397,612.95
  5. Step 5: Solve for x
    x = 255,397,612.95/19,820.38
  6. Step 6: Final answer
    x = 12,885.61

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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.