Home / 28,632.01-42,912.66-20,761.54

Finding the Fourth Proportional to 28,632.01, 42,912.66 and 20,761.54

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Solution

The fourth proportional to 28,632.01, 42,912.66 and 20,761.54 is: 31,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,632.01 : 42,912.66 = 20,761.54 : x
  2. Step 2: Convert to fraction form
    28,632.01/42,912.66 = 20,761.54/x
  3. Step 3: Cross multiply
    28,632.01x = 42,912.66 × 20,761.54
  4. Step 4: Simplify right side
    28,632.01x = 890,932,692.53
  5. Step 5: Solve for x
    x = 890,932,692.53/28,632.01
  6. Step 6: Final answer
    x = 31,116.67

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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.