Home / 28,680.75-39,581.46-16,105.50

Finding the Fourth Proportional to 28,680.75, 39,581.46 and 16,105.50

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Solution

The fourth proportional to 28,680.75, 39,581.46 and 16,105.50 is: 22,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.75 : 39,581.46 = 16,105.50 : x
  2. Step 2: Convert to fraction form
    28,680.75/39,581.46 = 16,105.50/x
  3. Step 3: Cross multiply
    28,680.75x = 39,581.46 × 16,105.50
  4. Step 4: Simplify right side
    28,680.75x = 637,479,204.03
  5. Step 5: Solve for x
    x = 637,479,204.03/28,680.75
  6. Step 6: Final answer
    x = 22,226.73

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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.