Home / 35,091.72-52,658.32-12,920.64

Finding the Fourth Proportional to 35,091.72, 52,658.32 and 12,920.64

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Solution

The fourth proportional to 35,091.72, 52,658.32 and 12,920.64 is: 19,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,091.72 : 52,658.32 = 12,920.64 : x
  2. Step 2: Convert to fraction form
    35,091.72/52,658.32 = 12,920.64/x
  3. Step 3: Cross multiply
    35,091.72x = 52,658.32 × 12,920.64
  4. Step 4: Simplify right side
    35,091.72x = 680,379,195.72
  5. Step 5: Solve for x
    x = 680,379,195.72/35,091.72
  6. Step 6: Final answer
    x = 19,388.60

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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.