Home / 38,668.61-53,367.11-21,677.44

Finding the Fourth Proportional to 38,668.61, 53,367.11 and 21,677.44

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Solution

The fourth proportional to 38,668.61, 53,367.11 and 21,677.44 is: 29,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.61 : 53,367.11 = 21,677.44 : x
  2. Step 2: Convert to fraction form
    38,668.61/53,367.11 = 21,677.44/x
  3. Step 3: Cross multiply
    38,668.61x = 53,367.11 × 21,677.44
  4. Step 4: Simplify right side
    38,668.61x = 1,156,862,325.00
  5. Step 5: Solve for x
    x = 1,156,862,325.00/38,668.61
  6. Step 6: Final answer
    x = 29,917.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.