Home / 21,620.80-32,433.86-7,391.62

Finding the Fourth Proportional to 21,620.80, 32,433.86 and 7,391.62

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Solution

The fourth proportional to 21,620.80, 32,433.86 and 7,391.62 is: 11,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.80 : 32,433.86 = 7,391.62 : x
  2. Step 2: Convert to fraction form
    21,620.80/32,433.86 = 7,391.62/x
  3. Step 3: Cross multiply
    21,620.80x = 32,433.86 × 7,391.62
  4. Step 4: Simplify right side
    21,620.80x = 239,738,768.25
  5. Step 5: Solve for x
    x = 239,738,768.25/21,620.80
  6. Step 6: Final answer
    x = 11,088.34

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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.