Home / 19,758.55-29,645.83-8,659.39

Finding the Fourth Proportional to 19,758.55, 29,645.83 and 8,659.39

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Solution

The fourth proportional to 19,758.55, 29,645.83 and 8,659.39 is: 12,992.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.55 : 29,645.83 = 8,659.39 : x
  2. Step 2: Convert to fraction form
    19,758.55/29,645.83 = 8,659.39/x
  3. Step 3: Cross multiply
    19,758.55x = 29,645.83 × 8,659.39
  4. Step 4: Simplify right side
    19,758.55x = 256,714,803.84
  5. Step 5: Solve for x
    x = 256,714,803.84/19,758.55
  6. Step 6: Final answer
    x = 12,992.59

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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.