Home / 20,494.20-28,327.08-18,694.98

Finding the Fourth Proportional to 20,494.20, 28,327.08 and 18,694.98

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Solution

The fourth proportional to 20,494.20, 28,327.08 and 18,694.98 is: 25,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.20 : 28,327.08 = 18,694.98 : x
  2. Step 2: Convert to fraction form
    20,494.20/28,327.08 = 18,694.98/x
  3. Step 3: Cross multiply
    20,494.20x = 28,327.08 × 18,694.98
  4. Step 4: Simplify right side
    20,494.20x = 529,574,194.06
  5. Step 5: Solve for x
    x = 529,574,194.06/20,494.20
  6. Step 6: Final answer
    x = 25,840.20

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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.