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Finding the Fourth Proportional to 43,851.40, 65,733.90 and 21,668.20

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Solution

The fourth proportional to 43,851.40, 65,733.90 and 21,668.20 is: 32,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,851.40 : 65,733.90 = 21,668.20 : x
  2. Step 2: Convert to fraction form
    43,851.40/65,733.90 = 21,668.20/x
  3. Step 3: Cross multiply
    43,851.40x = 65,733.90 × 21,668.20
  4. Step 4: Simplify right side
    43,851.40x = 1,424,335,291.98
  5. Step 5: Solve for x
    x = 1,424,335,291.98/43,851.40
  6. Step 6: Final answer
    x = 32,480.95

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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.