Home / 16,975.20-25,460.40-5,289.60

Finding the Fourth Proportional to 16,975.20, 25,460.40 and 5,289.60

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Solution

The fourth proportional to 16,975.20, 25,460.40 and 5,289.60 is: 7,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,975.20 : 25,460.40 = 5,289.60 : x
  2. Step 2: Convert to fraction form
    16,975.20/25,460.40 = 5,289.60/x
  3. Step 3: Cross multiply
    16,975.20x = 25,460.40 × 5,289.60
  4. Step 4: Simplify right side
    16,975.20x = 134,675,331.84
  5. Step 5: Solve for x
    x = 134,675,331.84/16,975.20
  6. Step 6: Final answer
    x = 7,933.65

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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.