Home / 20,601.03-28,440.45-16,115.25

Finding the Fourth Proportional to 20,601.03, 28,440.45 and 16,115.25

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Solution

The fourth proportional to 20,601.03, 28,440.45 and 16,115.25 is: 22,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.03 : 28,440.45 = 16,115.25 : x
  2. Step 2: Convert to fraction form
    20,601.03/28,440.45 = 16,115.25/x
  3. Step 3: Cross multiply
    20,601.03x = 28,440.45 × 16,115.25
  4. Step 4: Simplify right side
    20,601.03x = 458,324,961.86
  5. Step 5: Solve for x
    x = 458,324,961.86/20,601.03
  6. Step 6: Final answer
    x = 22,247.67

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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.