Home / 35,105.85-52,658.78-12,919.95

Finding the Fourth Proportional to 35,105.85, 52,658.78 and 12,919.95

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Solution

The fourth proportional to 35,105.85, 52,658.78 and 12,919.95 is: 19,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,105.85 : 52,658.78 = 12,919.95 : x
  2. Step 2: Convert to fraction form
    35,105.85/52,658.78 = 12,919.95/x
  3. Step 3: Cross multiply
    35,105.85x = 52,658.78 × 12,919.95
  4. Step 4: Simplify right side
    35,105.85x = 680,348,740.06
  5. Step 5: Solve for x
    x = 680,348,740.06/35,105.85
  6. Step 6: Final answer
    x = 19,379.93

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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.