Home / 42,170.08-63,255.04-12,608.64

Finding the Fourth Proportional to 42,170.08, 63,255.04 and 12,608.64

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Solution

The fourth proportional to 42,170.08, 63,255.04 and 12,608.64 is: 18,912.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170.08 : 63,255.04 = 12,608.64 : x
  2. Step 2: Convert to fraction form
    42,170.08/63,255.04 = 12,608.64/x
  3. Step 3: Cross multiply
    42,170.08x = 63,255.04 × 12,608.64
  4. Step 4: Simplify right side
    42,170.08x = 797,560,027.55
  5. Step 5: Solve for x
    x = 797,560,027.55/42,170.08
  6. Step 6: Final answer
    x = 18,912.94

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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.