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Finding the Fourth Proportional to 30,889.87, 45,937.42 and 29,905.72

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Solution

The fourth proportional to 30,889.87, 45,937.42 and 29,905.72 is: 44,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.87 : 45,937.42 = 29,905.72 : x
  2. Step 2: Convert to fraction form
    30,889.87/45,937.42 = 29,905.72/x
  3. Step 3: Cross multiply
    30,889.87x = 45,937.42 × 29,905.72
  4. Step 4: Simplify right side
    30,889.87x = 1,373,791,620.04
  5. Step 5: Solve for x
    x = 1,373,791,620.04/30,889.87
  6. Step 6: Final answer
    x = 44,473.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.