Home / 25,485.28-38,198.48-9,889.68

Finding the Fourth Proportional to 25,485.28, 38,198.48 and 9,889.68

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Solution

The fourth proportional to 25,485.28, 38,198.48 and 9,889.68 is: 14,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.28 : 38,198.48 = 9,889.68 : x
  2. Step 2: Convert to fraction form
    25,485.28/38,198.48 = 9,889.68/x
  3. Step 3: Cross multiply
    25,485.28x = 38,198.48 × 9,889.68
  4. Step 4: Simplify right side
    25,485.28x = 377,770,743.69
  5. Step 5: Solve for x
    x = 377,770,743.69/25,485.28
  6. Step 6: Final answer
    x = 14,823.10

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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.