Home / 20,745.24-28,631.04-11,671.07

Finding the Fourth Proportional to 20,745.24, 28,631.04 and 11,671.07

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Solution

The fourth proportional to 20,745.24, 28,631.04 and 11,671.07 is: 16,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.24 : 28,631.04 = 11,671.07 : x
  2. Step 2: Convert to fraction form
    20,745.24/28,631.04 = 11,671.07/x
  3. Step 3: Cross multiply
    20,745.24x = 28,631.04 × 11,671.07
  4. Step 4: Simplify right side
    20,745.24x = 334,154,728.86
  5. Step 5: Solve for x
    x = 334,154,728.86/20,745.24
  6. Step 6: Final answer
    x = 16,107.54

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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.