Home / 18,830.96-28,266.88-14,164.28

Finding the Fourth Proportional to 18,830.96, 28,266.88 and 14,164.28

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Solution

The fourth proportional to 18,830.96, 28,266.88 and 14,164.28 is: 21,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.96 : 28,266.88 = 14,164.28 : x
  2. Step 2: Convert to fraction form
    18,830.96/28,266.88 = 14,164.28/x
  3. Step 3: Cross multiply
    18,830.96x = 28,266.88 × 14,164.28
  4. Step 4: Simplify right side
    18,830.96x = 400,380,003.05
  5. Step 5: Solve for x
    x = 400,380,003.05/18,830.96
  6. Step 6: Final answer
    x = 21,261.79

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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.