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Finding the Fourth Proportional to 30,232.40, 45,356.76 and 10,512.05

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Solution

The fourth proportional to 30,232.40, 45,356.76 and 10,512.05 is: 15,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232.40 : 45,356.76 = 10,512.05 : x
  2. Step 2: Convert to fraction form
    30,232.40/45,356.76 = 10,512.05/x
  3. Step 3: Cross multiply
    30,232.40x = 45,356.76 × 10,512.05
  4. Step 4: Simplify right side
    30,232.40x = 476,792,302.17
  5. Step 5: Solve for x
    x = 476,792,302.17/30,232.40
  6. Step 6: Final answer
    x = 15,770.91

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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.