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Finding the Fourth Proportional to 17,576.40, 26,364.60 and 13,659.60

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Solution

The fourth proportional to 17,576.40, 26,364.60 and 13,659.60 is: 20,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,576.40 : 26,364.60 = 13,659.60 : x
  2. Step 2: Convert to fraction form
    17,576.40/26,364.60 = 13,659.60/x
  3. Step 3: Cross multiply
    17,576.40x = 26,364.60 × 13,659.60
  4. Step 4: Simplify right side
    17,576.40x = 360,129,890.16
  5. Step 5: Solve for x
    x = 360,129,890.16/17,576.40
  6. Step 6: Final answer
    x = 20,489.40

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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.