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Finding the Fourth Proportional to 29,113.20, 43,669.80 and 10,402.20

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Solution

The fourth proportional to 29,113.20, 43,669.80 and 10,402.20 is: 15,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,113.20 : 43,669.80 = 10,402.20 : x
  2. Step 2: Convert to fraction form
    29,113.20/43,669.80 = 10,402.20/x
  3. Step 3: Cross multiply
    29,113.20x = 43,669.80 × 10,402.20
  4. Step 4: Simplify right side
    29,113.20x = 454,261,993.56
  5. Step 5: Solve for x
    x = 454,261,993.56/29,113.20
  6. Step 6: Final answer
    x = 15,603.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.