Home / 20,520.24-30,761.73-10,647.96

Finding the Fourth Proportional to 20,520.24, 30,761.73 and 10,647.96

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Solution

The fourth proportional to 20,520.24, 30,761.73 and 10,647.96 is: 15,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.24 : 30,761.73 = 10,647.96 : x
  2. Step 2: Convert to fraction form
    20,520.24/30,761.73 = 10,647.96/x
  3. Step 3: Cross multiply
    20,520.24x = 30,761.73 × 10,647.96
  4. Step 4: Simplify right side
    20,520.24x = 327,549,670.57
  5. Step 5: Solve for x
    x = 327,549,670.57/20,520.24
  6. Step 6: Final answer
    x = 15,962.27

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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.