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Finding the Fourth Proportional to 17,069.40, 25,604.10 and 13,613.40

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Solution

The fourth proportional to 17,069.40, 25,604.10 and 13,613.40 is: 20,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,069.40 : 25,604.10 = 13,613.40 : x
  2. Step 2: Convert to fraction form
    17,069.40/25,604.10 = 13,613.40/x
  3. Step 3: Cross multiply
    17,069.40x = 25,604.10 × 13,613.40
  4. Step 4: Simplify right side
    17,069.40x = 348,558,854.94
  5. Step 5: Solve for x
    x = 348,558,854.94/17,069.40
  6. Step 6: Final answer
    x = 20,420.10

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1.5x scale

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.