Home / 33,280.08-49,905.54-12,489

Finding the Fourth Proportional to 33,280.08, 49,905.54 and 12,489

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Solution

The fourth proportional to 33,280.08, 49,905.54 and 12,489 is: 18,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.08 : 49,905.54 = 12,489 : x
  2. Step 2: Convert to fraction form
    33,280.08/49,905.54 = 12,489/x
  3. Step 3: Cross multiply
    33,280.08x = 49,905.54 × 12,489
  4. Step 4: Simplify right side
    33,280.08x = 623,270,289.06
  5. Step 5: Solve for x
    x = 623,270,289.06/33,280.08
  6. Step 6: Final answer
    x = 18,728.03

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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.