Home / 40,857.21-61,229.12-18,616.23

Finding the Fourth Proportional to 40,857.21, 61,229.12 and 18,616.23

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Solution

The fourth proportional to 40,857.21, 61,229.12 and 18,616.23 is: 27,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,857.21 : 61,229.12 = 18,616.23 : x
  2. Step 2: Convert to fraction form
    40,857.21/61,229.12 = 18,616.23/x
  3. Step 3: Cross multiply
    40,857.21x = 61,229.12 × 18,616.23
  4. Step 4: Simplify right side
    40,857.21x = 1,139,855,287.54
  5. Step 5: Solve for x
    x = 1,139,855,287.54/40,857.21
  6. Step 6: Final answer
    x = 27,898.51

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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.