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Finding the Fourth Proportional to 29,251.40, 43,790.70 and 19,401.80

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Solution

The fourth proportional to 29,251.40, 43,790.70 and 19,401.80 is: 29,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,251.40 : 43,790.70 = 19,401.80 : x
  2. Step 2: Convert to fraction form
    29,251.40/43,790.70 = 19,401.80/x
  3. Step 3: Cross multiply
    29,251.40x = 43,790.70 × 19,401.80
  4. Step 4: Simplify right side
    29,251.40x = 849,618,403.26
  5. Step 5: Solve for x
    x = 849,618,403.26/29,251.40
  6. Step 6: Final answer
    x = 29,045.39

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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.