Home / 31,844.21-43,949.06-18,412.87

Finding the Fourth Proportional to 31,844.21, 43,949.06 and 18,412.87

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Solution

The fourth proportional to 31,844.21, 43,949.06 and 18,412.87 is: 25,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.21 : 43,949.06 = 18,412.87 : x
  2. Step 2: Convert to fraction form
    31,844.21/43,949.06 = 18,412.87/x
  3. Step 3: Cross multiply
    31,844.21x = 43,949.06 × 18,412.87
  4. Step 4: Simplify right side
    31,844.21x = 809,228,328.40
  5. Step 5: Solve for x
    x = 809,228,328.40/31,844.21
  6. Step 6: Final answer
    x = 25,412.10

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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.