Home / 35,091.70-52,658.30-12,920.66

Finding the Fourth Proportional to 35,091.70, 52,658.30 and 12,920.66

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Solution

The fourth proportional to 35,091.70, 52,658.30 and 12,920.66 is: 19,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,091.70 : 52,658.30 = 12,920.66 : x
  2. Step 2: Convert to fraction form
    35,091.70/52,658.30 = 12,920.66/x
  3. Step 3: Cross multiply
    35,091.70x = 52,658.30 × 12,920.66
  4. Step 4: Simplify right side
    35,091.70x = 680,379,990.48
  5. Step 5: Solve for x
    x = 680,379,990.48/35,091.70
  6. Step 6: Final answer
    x = 19,388.63

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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.