Home / 18,284.40-25,189.24-15,076.80

Finding the Fourth Proportional to 18,284.40, 25,189.24 and 15,076.80

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Solution

The fourth proportional to 18,284.40, 25,189.24 and 15,076.80 is: 20,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,284.40 : 25,189.24 = 15,076.80 : x
  2. Step 2: Convert to fraction form
    18,284.40/25,189.24 = 15,076.80/x
  3. Step 3: Cross multiply
    18,284.40x = 25,189.24 × 15,076.80
  4. Step 4: Simplify right side
    18,284.40x = 379,773,133.63
  5. Step 5: Solve for x
    x = 379,773,133.63/18,284.40
  6. Step 6: Final answer
    x = 20,770.34

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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.