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Finding the Fourth Proportional to 30,263.72, 45,395.81 and 10,542.24

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Solution

The fourth proportional to 30,263.72, 45,395.81 and 10,542.24 is: 15,813.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,263.72 : 45,395.81 = 10,542.24 : x
  2. Step 2: Convert to fraction form
    30,263.72/45,395.81 = 10,542.24/x
  3. Step 3: Cross multiply
    30,263.72x = 45,395.81 × 10,542.24
  4. Step 4: Simplify right side
    30,263.72x = 478,573,471.30
  5. Step 5: Solve for x
    x = 478,573,471.30/30,263.72
  6. Step 6: Final answer
    x = 15,813.44

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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.