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Finding the Fourth Proportional to 32,668.40, 49,002.60 and 21,004.40

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Solution

The fourth proportional to 32,668.40, 49,002.60 and 21,004.40 is: 31,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,668.40 : 49,002.60 = 21,004.40 : x
  2. Step 2: Convert to fraction form
    32,668.40/49,002.60 = 21,004.40/x
  3. Step 3: Cross multiply
    32,668.40x = 49,002.60 × 21,004.40
  4. Step 4: Simplify right side
    32,668.40x = 1,029,270,211.44
  5. Step 5: Solve for x
    x = 1,029,270,211.44/32,668.40
  6. Step 6: Final answer
    x = 31,506.60

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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.