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Finding the Fourth Proportional to 39,752.76, 54,860.04 and 21,847.44

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Solution

The fourth proportional to 39,752.76, 54,860.04 and 21,847.44 is: 30,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.76 : 54,860.04 = 21,847.44 : x
  2. Step 2: Convert to fraction form
    39,752.76/54,860.04 = 21,847.44/x
  3. Step 3: Cross multiply
    39,752.76x = 54,860.04 × 21,847.44
  4. Step 4: Simplify right side
    39,752.76x = 1,198,551,432.30
  5. Step 5: Solve for x
    x = 1,198,551,432.30/39,752.76
  6. Step 6: Final answer
    x = 30,150.14

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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.