Home / 13,465.20-20,195.88-4,230

Finding the Fourth Proportional to 13,465.20, 20,195.88 and 4,230

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Solution

The fourth proportional to 13,465.20, 20,195.88 and 4,230 is: 6,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.20 : 20,195.88 = 4,230 : x
  2. Step 2: Convert to fraction form
    13,465.20/20,195.88 = 4,230/x
  3. Step 3: Cross multiply
    13,465.20x = 20,195.88 × 4,230
  4. Step 4: Simplify right side
    13,465.20x = 85,428,572.40
  5. Step 5: Solve for x
    x = 85,428,572.40/13,465.20
  6. Step 6: Final answer
    x = 6,344.40

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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.