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Finding the Fourth Proportional to 34,989.59, 48,283.80 and 19,880.15

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Solution

The fourth proportional to 34,989.59, 48,283.80 and 19,880.15 is: 27,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,989.59 : 48,283.80 = 19,880.15 : x
  2. Step 2: Convert to fraction form
    34,989.59/48,283.80 = 19,880.15/x
  3. Step 3: Cross multiply
    34,989.59x = 48,283.80 × 19,880.15
  4. Step 4: Simplify right side
    34,989.59x = 959,889,186.57
  5. Step 5: Solve for x
    x = 959,889,186.57/34,989.59
  6. Step 6: Final answer
    x = 27,433.56

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Why These Related Problems?

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