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Finding the Fourth Proportional to 29,029, 40,068.57 and 18,958.99

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Solution

The fourth proportional to 29,029, 40,068.57 and 18,958.99 is: 26,168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,029 : 40,068.57 = 18,958.99 : x
  2. Step 2: Convert to fraction form
    29,029/40,068.57 = 18,958.99/x
  3. Step 3: Cross multiply
    29,029x = 40,068.57 × 18,958.99
  4. Step 4: Simplify right side
    29,029x = 759,659,617.94
  5. Step 5: Solve for x
    x = 759,659,617.94/29,029
  6. Step 6: Final answer
    x = 26,168.99

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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.