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Finding the Fourth Proportional to 29,311.60, 43,955.82 and 9,313.90

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Solution

The fourth proportional to 29,311.60, 43,955.82 and 9,313.90 is: 13,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.60 : 43,955.82 = 9,313.90 : x
  2. Step 2: Convert to fraction form
    29,311.60/43,955.82 = 9,313.90/x
  3. Step 3: Cross multiply
    29,311.60x = 43,955.82 × 9,313.90
  4. Step 4: Simplify right side
    29,311.60x = 409,400,111.90
  5. Step 5: Solve for x
    x = 409,400,111.90/29,311.60
  6. Step 6: Final answer
    x = 13,967.17

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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.