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Finding the Fourth Proportional to 30,737.58, 42,419.15 and 17,125.60

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Solution

The fourth proportional to 30,737.58, 42,419.15 and 17,125.60 is: 23,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.58 : 42,419.15 = 17,125.60 : x
  2. Step 2: Convert to fraction form
    30,737.58/42,419.15 = 17,125.60/x
  3. Step 3: Cross multiply
    30,737.58x = 42,419.15 × 17,125.60
  4. Step 4: Simplify right side
    30,737.58x = 726,453,395.24
  5. Step 5: Solve for x
    x = 726,453,395.24/30,737.58
  6. Step 6: Final answer
    x = 23,634.05

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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.