Home / 21,975.35-30,325.97-11,903.85

Finding the Fourth Proportional to 21,975.35, 30,325.97 and 11,903.85

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Solution

The fourth proportional to 21,975.35, 30,325.97 and 11,903.85 is: 16,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.35 : 30,325.97 = 11,903.85 : x
  2. Step 2: Convert to fraction form
    21,975.35/30,325.97 = 11,903.85/x
  3. Step 3: Cross multiply
    21,975.35x = 30,325.97 × 11,903.85
  4. Step 4: Simplify right side
    21,975.35x = 360,995,827.74
  5. Step 5: Solve for x
    x = 360,995,827.74/21,975.35
  6. Step 6: Final answer
    x = 16,427.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.