Home / 22,679.04-31,286.88-13,242

Finding the Fourth Proportional to 22,679.04, 31,286.88 and 13,242

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Solution

The fourth proportional to 22,679.04, 31,286.88 and 13,242 is: 18,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.04 : 31,286.88 = 13,242 : x
  2. Step 2: Convert to fraction form
    22,679.04/31,286.88 = 13,242/x
  3. Step 3: Cross multiply
    22,679.04x = 31,286.88 × 13,242
  4. Step 4: Simplify right side
    22,679.04x = 414,300,864.96
  5. Step 5: Solve for x
    x = 414,300,864.96/22,679.04
  6. Step 6: Final answer
    x = 18,268.01

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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.