Home / 36,139.30-49,874.32-20,223.60

Finding the Fourth Proportional to 36,139.30, 49,874.32 and 20,223.60

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Solution

The fourth proportional to 36,139.30, 49,874.32 and 20,223.60 is: 27,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.30 : 49,874.32 = 20,223.60 : x
  2. Step 2: Convert to fraction form
    36,139.30/49,874.32 = 20,223.60/x
  3. Step 3: Cross multiply
    36,139.30x = 49,874.32 × 20,223.60
  4. Step 4: Simplify right side
    36,139.30x = 1,008,638,297.95
  5. Step 5: Solve for x
    x = 1,008,638,297.95/36,139.30
  6. Step 6: Final answer
    x = 27,909.74

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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.