Home / 42,197.70-63,299.79-12,613.26

Finding the Fourth Proportional to 42,197.70, 63,299.79 and 12,613.26

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Solution

The fourth proportional to 42,197.70, 63,299.79 and 12,613.26 is: 18,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,197.70 : 63,299.79 = 12,613.26 : x
  2. Step 2: Convert to fraction form
    42,197.70/63,299.79 = 12,613.26/x
  3. Step 3: Cross multiply
    42,197.70x = 63,299.79 × 12,613.26
  4. Step 4: Simplify right side
    42,197.70x = 798,416,709.22
  5. Step 5: Solve for x
    x = 798,416,709.22/42,197.70
  6. Step 6: Final answer
    x = 18,920.86

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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.