Home / 20,253.56-30,280.50-17,168.09

Finding the Fourth Proportional to 20,253.56, 30,280.50 and 17,168.09

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Solution

The fourth proportional to 20,253.56, 30,280.50 and 17,168.09 is: 25,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.56 : 30,280.50 = 17,168.09 : x
  2. Step 2: Convert to fraction form
    20,253.56/30,280.50 = 17,168.09/x
  3. Step 3: Cross multiply
    20,253.56x = 30,280.50 × 17,168.09
  4. Step 4: Simplify right side
    20,253.56x = 519,858,197.84
  5. Step 5: Solve for x
    x = 519,858,197.84/20,253.56
  6. Step 6: Final answer
    x = 25,667.50

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1.5x scale

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.