Home / 18,283.72-27,425.04-15,811.36

Finding the Fourth Proportional to 18,283.72, 27,425.04 and 15,811.36

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Solution

The fourth proportional to 18,283.72, 27,425.04 and 15,811.36 is: 23,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.72 : 27,425.04 = 15,811.36 : x
  2. Step 2: Convert to fraction form
    18,283.72/27,425.04 = 15,811.36/x
  3. Step 3: Cross multiply
    18,283.72x = 27,425.04 × 15,811.36
  4. Step 4: Simplify right side
    18,283.72x = 433,627,180.45
  5. Step 5: Solve for x
    x = 433,627,180.45/18,283.72
  6. Step 6: Final answer
    x = 23,716.57

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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.