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Finding the Fourth Proportional to 29,690.60, 44,520.78 and 8,911.40

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Solution

The fourth proportional to 29,690.60, 44,520.78 and 8,911.40 is: 13,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,690.60 : 44,520.78 = 8,911.40 : x
  2. Step 2: Convert to fraction form
    29,690.60/44,520.78 = 8,911.40/x
  3. Step 3: Cross multiply
    29,690.60x = 44,520.78 × 8,911.40
  4. Step 4: Simplify right side
    29,690.60x = 396,742,478.89
  5. Step 5: Solve for x
    x = 396,742,478.89/29,690.60
  6. Step 6: Final answer
    x = 13,362.56

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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.