Home / 20,265.24-27,958.32-12,708.36

Finding the Fourth Proportional to 20,265.24, 27,958.32 and 12,708.36

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Solution

The fourth proportional to 20,265.24, 27,958.32 and 12,708.36 is: 17,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.24 : 27,958.32 = 12,708.36 : x
  2. Step 2: Convert to fraction form
    20,265.24/27,958.32 = 12,708.36/x
  3. Step 3: Cross multiply
    20,265.24x = 27,958.32 × 12,708.36
  4. Step 4: Simplify right side
    20,265.24x = 355,304,395.56
  5. Step 5: Solve for x
    x = 355,304,395.56/20,265.24
  6. Step 6: Final answer
    x = 17,532.70

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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.