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Finding the Fourth Proportional to 29,326.63, 43,989.90 and 20,600.50

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Solution

The fourth proportional to 29,326.63, 43,989.90 and 20,600.50 is: 30,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,326.63 : 43,989.90 = 20,600.50 : x
  2. Step 2: Convert to fraction form
    29,326.63/43,989.90 = 20,600.50/x
  3. Step 3: Cross multiply
    29,326.63x = 43,989.90 × 20,600.50
  4. Step 4: Simplify right side
    29,326.63x = 906,213,934.95
  5. Step 5: Solve for x
    x = 906,213,934.95/29,326.63
  6. Step 6: Final answer
    x = 30,900.72

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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.