Home / 20,487.83-30,750.87-10,634.01

Finding the Fourth Proportional to 20,487.83, 30,750.87 and 10,634.01

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Solution

The fourth proportional to 20,487.83, 30,750.87 and 10,634.01 is: 15,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.83 : 30,750.87 = 10,634.01 : x
  2. Step 2: Convert to fraction form
    20,487.83/30,750.87 = 10,634.01/x
  3. Step 3: Cross multiply
    20,487.83x = 30,750.87 × 10,634.01
  4. Step 4: Simplify right side
    20,487.83x = 327,005,059.09
  5. Step 5: Solve for x
    x = 327,005,059.09/20,487.83
  6. Step 6: Final answer
    x = 15,960.95

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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.