Home / 31,384.26-43,305.03-18,809.01

Finding the Fourth Proportional to 31,384.26, 43,305.03 and 18,809.01

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Solution

The fourth proportional to 31,384.26, 43,305.03 and 18,809.01 is: 25,953.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.26 : 43,305.03 = 18,809.01 : x
  2. Step 2: Convert to fraction form
    31,384.26/43,305.03 = 18,809.01/x
  3. Step 3: Cross multiply
    31,384.26x = 43,305.03 × 18,809.01
  4. Step 4: Simplify right side
    31,384.26x = 814,524,742.32
  5. Step 5: Solve for x
    x = 814,524,742.32/31,384.26
  6. Step 6: Final answer
    x = 25,953.29

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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.