Home / 20,355.50-28,061.94-16,757.89

Finding the Fourth Proportional to 20,355.50, 28,061.94 and 16,757.89

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Solution

The fourth proportional to 20,355.50, 28,061.94 and 16,757.89 is: 23,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.50 : 28,061.94 = 16,757.89 : x
  2. Step 2: Convert to fraction form
    20,355.50/28,061.94 = 16,757.89/x
  3. Step 3: Cross multiply
    20,355.50x = 28,061.94 × 16,757.89
  4. Step 4: Simplify right side
    20,355.50x = 470,258,896.39
  5. Step 5: Solve for x
    x = 470,258,896.39/20,355.50
  6. Step 6: Final answer
    x = 23,102.30

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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.