Home / 20,600.26-28,442.01-12,219.46

Finding the Fourth Proportional to 20,600.26, 28,442.01 and 12,219.46

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Solution

The fourth proportional to 20,600.26, 28,442.01 and 12,219.46 is: 16,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.26 : 28,442.01 = 12,219.46 : x
  2. Step 2: Convert to fraction form
    20,600.26/28,442.01 = 12,219.46/x
  3. Step 3: Cross multiply
    20,600.26x = 28,442.01 × 12,219.46
  4. Step 4: Simplify right side
    20,600.26x = 347,546,003.51
  5. Step 5: Solve for x
    x = 347,546,003.51/20,600.26
  6. Step 6: Final answer
    x = 16,870.95

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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.