Home / 28,230.72-38,958.60-19,277.99

Finding the Fourth Proportional to 28,230.72, 38,958.60 and 19,277.99

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Solution

The fourth proportional to 28,230.72, 38,958.60 and 19,277.99 is: 26,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.72 : 38,958.60 = 19,277.99 : x
  2. Step 2: Convert to fraction form
    28,230.72/38,958.60 = 19,277.99/x
  3. Step 3: Cross multiply
    28,230.72x = 38,958.60 × 19,277.99
  4. Step 4: Simplify right side
    28,230.72x = 751,043,306.42
  5. Step 5: Solve for x
    x = 751,043,306.42/28,230.72
  6. Step 6: Final answer
    x = 26,603.76

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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.