Home / 20,266.06-30,391.80-8,580.10

Finding the Fourth Proportional to 20,266.06, 30,391.80 and 8,580.10

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Solution

The fourth proportional to 20,266.06, 30,391.80 and 8,580.10 is: 12,867.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.06 : 30,391.80 = 8,580.10 : x
  2. Step 2: Convert to fraction form
    20,266.06/30,391.80 = 8,580.10/x
  3. Step 3: Cross multiply
    20,266.06x = 30,391.80 × 8,580.10
  4. Step 4: Simplify right side
    20,266.06x = 260,764,683.18
  5. Step 5: Solve for x
    x = 260,764,683.18/20,266.06
  6. Step 6: Final answer
    x = 12,867.06

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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.