Home / 20,745.61-28,631.36-11,794.45

Finding the Fourth Proportional to 20,745.61, 28,631.36 and 11,794.45

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Solution

The fourth proportional to 20,745.61, 28,631.36 and 11,794.45 is: 16,277.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.61 : 28,631.36 = 11,794.45 : x
  2. Step 2: Convert to fraction form
    20,745.61/28,631.36 = 11,794.45/x
  3. Step 3: Cross multiply
    20,745.61x = 28,631.36 × 11,794.45
  4. Step 4: Simplify right side
    20,745.61x = 337,691,089.20
  5. Step 5: Solve for x
    x = 337,691,089.20/20,745.61
  6. Step 6: Final answer
    x = 16,277.72

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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.