Home / 13,628.18-20,442.29-4,269.02

Finding the Fourth Proportional to 13,628.18, 20,442.29 and 4,269.02

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Solution

The fourth proportional to 13,628.18, 20,442.29 and 4,269.02 is: 6,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.18 : 20,442.29 = 4,269.02 : x
  2. Step 2: Convert to fraction form
    13,628.18/20,442.29 = 4,269.02/x
  3. Step 3: Cross multiply
    13,628.18x = 20,442.29 × 4,269.02
  4. Step 4: Simplify right side
    13,628.18x = 87,268,421.30
  5. Step 5: Solve for x
    x = 87,268,421.30/13,628.18
  6. Step 6: Final answer
    x = 6,403.53

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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.