Home / 18,905.67-28,308.96-13,328.82

Finding the Fourth Proportional to 18,905.67, 28,308.96 and 13,328.82

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Solution

The fourth proportional to 18,905.67, 28,308.96 and 13,328.82 is: 19,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.67 : 28,308.96 = 13,328.82 : x
  2. Step 2: Convert to fraction form
    18,905.67/28,308.96 = 13,328.82/x
  3. Step 3: Cross multiply
    18,905.67x = 28,308.96 × 13,328.82
  4. Step 4: Simplify right side
    18,905.67x = 377,325,032.23
  5. Step 5: Solve for x
    x = 377,325,032.23/18,905.67
  6. Step 6: Final answer
    x = 19,958.30

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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.