Home / 20,519.28-30,757.44-11,623.50

Finding the Fourth Proportional to 20,519.28, 30,757.44 and 11,623.50

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Solution

The fourth proportional to 20,519.28, 30,757.44 and 11,623.50 is: 17,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.28 : 30,757.44 = 11,623.50 : x
  2. Step 2: Convert to fraction form
    20,519.28/30,757.44 = 11,623.50/x
  3. Step 3: Cross multiply
    20,519.28x = 30,757.44 × 11,623.50
  4. Step 4: Simplify right side
    20,519.28x = 357,509,103.84
  5. Step 5: Solve for x
    x = 357,509,103.84/20,519.28
  6. Step 6: Final answer
    x = 17,423.08

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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.