Home / 20,652.76-30,940.26-10,271.80

Finding the Fourth Proportional to 20,652.76, 30,940.26 and 10,271.80

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Solution

The fourth proportional to 20,652.76, 30,940.26 and 10,271.80 is: 15,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.76 : 30,940.26 = 10,271.80 : x
  2. Step 2: Convert to fraction form
    20,652.76/30,940.26 = 10,271.80/x
  3. Step 3: Cross multiply
    20,652.76x = 30,940.26 × 10,271.80
  4. Step 4: Simplify right side
    20,652.76x = 317,812,162.67
  5. Step 5: Solve for x
    x = 317,812,162.67/20,652.76
  6. Step 6: Final answer
    x = 15,388.36

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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.