Home / 20,584.25-30,917.70-12,280.46

Finding the Fourth Proportional to 20,584.25, 30,917.70 and 12,280.46

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Solution

The fourth proportional to 20,584.25, 30,917.70 and 12,280.46 is: 18,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.25 : 30,917.70 = 12,280.46 : x
  2. Step 2: Convert to fraction form
    20,584.25/30,917.70 = 12,280.46/x
  3. Step 3: Cross multiply
    20,584.25x = 30,917.70 × 12,280.46
  4. Step 4: Simplify right side
    20,584.25x = 379,683,655.44
  5. Step 5: Solve for x
    x = 379,683,655.44/20,584.25
  6. Step 6: Final answer
    x = 18,445.35

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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.