Home / 36,311.90-50,104.98-20,393.28

Finding the Fourth Proportional to 36,311.90, 50,104.98 and 20,393.28

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Solution

The fourth proportional to 36,311.90, 50,104.98 and 20,393.28 is: 28,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.90 : 50,104.98 = 20,393.28 : x
  2. Step 2: Convert to fraction form
    36,311.90/50,104.98 = 20,393.28/x
  3. Step 3: Cross multiply
    36,311.90x = 50,104.98 × 20,393.28
  4. Step 4: Simplify right side
    36,311.90x = 1,021,804,886.53
  5. Step 5: Solve for x
    x = 1,021,804,886.53/36,311.90
  6. Step 6: Final answer
    x = 28,139.67

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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.