Home / 40,709.05-61,067.31-12,629.32

Finding the Fourth Proportional to 40,709.05, 61,067.31 and 12,629.32

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Solution

The fourth proportional to 40,709.05, 61,067.31 and 12,629.32 is: 18,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.05 : 61,067.31 = 12,629.32 : x
  2. Step 2: Convert to fraction form
    40,709.05/61,067.31 = 12,629.32/x
  3. Step 3: Cross multiply
    40,709.05x = 61,067.31 × 12,629.32
  4. Step 4: Simplify right side
    40,709.05x = 771,238,599.53
  5. Step 5: Solve for x
    x = 771,238,599.53/40,709.05
  6. Step 6: Final answer
    x = 18,945.14

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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.