Home / 40,709.90-61,067.82-12,626.40

Finding the Fourth Proportional to 40,709.90, 61,067.82 and 12,626.40

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Solution

The fourth proportional to 40,709.90, 61,067.82 and 12,626.40 is: 18,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.90 : 61,067.82 = 12,626.40 : x
  2. Step 2: Convert to fraction form
    40,709.90/61,067.82 = 12,626.40/x
  3. Step 3: Cross multiply
    40,709.90x = 61,067.82 × 12,626.40
  4. Step 4: Simplify right side
    40,709.90x = 771,066,722.45
  5. Step 5: Solve for x
    x = 771,066,722.45/40,709.90
  6. Step 6: Final answer
    x = 18,940.52

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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.