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Finding the Fourth Proportional to 35,228.78, 48,615.73 and 19,312.90

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Solution

The fourth proportional to 35,228.78, 48,615.73 and 19,312.90 is: 26,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,228.78 : 48,615.73 = 19,312.90 : x
  2. Step 2: Convert to fraction form
    35,228.78/48,615.73 = 19,312.90/x
  3. Step 3: Cross multiply
    35,228.78x = 48,615.73 × 19,312.90
  4. Step 4: Simplify right side
    35,228.78x = 938,910,731.92
  5. Step 5: Solve for x
    x = 938,910,731.92/35,228.78
  6. Step 6: Final answer
    x = 26,651.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.