Home / 19,429.75-29,153.85-8,339.61

Finding the Fourth Proportional to 19,429.75, 29,153.85 and 8,339.61

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Solution

The fourth proportional to 19,429.75, 29,153.85 and 8,339.61 is: 12,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.75 : 29,153.85 = 8,339.61 : x
  2. Step 2: Convert to fraction form
    19,429.75/29,153.85 = 8,339.61/x
  3. Step 3: Cross multiply
    19,429.75x = 29,153.85 × 8,339.61
  4. Step 4: Simplify right side
    19,429.75x = 243,131,739.00
  5. Step 5: Solve for x
    x = 243,131,739.00/19,429.75
  6. Step 6: Final answer
    x = 12,513.37

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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.