Home / 48,310.49-72,431.78-21,280.00

Finding the Fourth Proportional to 48,310.49, 72,431.78 and 21,280.00

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Solution

The fourth proportional to 48,310.49, 72,431.78 and 21,280.00 is: 31,905.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,310.49 : 72,431.78 = 21,280.00 : x
  2. Step 2: Convert to fraction form
    48,310.49/72,431.78 = 21,280.00/x
  3. Step 3: Cross multiply
    48,310.49x = 72,431.78 × 21,280.00
  4. Step 4: Simplify right side
    48,310.49x = 1,541,348,262.54
  5. Step 5: Solve for x
    x = 1,541,348,262.54/48,310.49
  6. Step 6: Final answer
    x = 31,905.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.