Home / 39,230.87-54,138.26-21,325.82

Finding the Fourth Proportional to 39,230.87, 54,138.26 and 21,325.82

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Solution

The fourth proportional to 39,230.87, 54,138.26 and 21,325.82 is: 29,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.87 : 54,138.26 = 21,325.82 : x
  2. Step 2: Convert to fraction form
    39,230.87/54,138.26 = 21,325.82/x
  3. Step 3: Cross multiply
    39,230.87x = 54,138.26 × 21,325.82
  4. Step 4: Simplify right side
    39,230.87x = 1,154,542,410.55
  5. Step 5: Solve for x
    x = 1,154,542,410.55/39,230.87
  6. Step 6: Final answer
    x = 29,429.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.