Home / 22,450.79-30,983.48-12,379.20

Finding the Fourth Proportional to 22,450.79, 30,983.48 and 12,379.20

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Solution

The fourth proportional to 22,450.79, 30,983.48 and 12,379.20 is: 17,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.79 : 30,983.48 = 12,379.20 : x
  2. Step 2: Convert to fraction form
    22,450.79/30,983.48 = 12,379.20/x
  3. Step 3: Cross multiply
    22,450.79x = 30,983.48 × 12,379.20
  4. Step 4: Simplify right side
    22,450.79x = 383,550,563.95
  5. Step 5: Solve for x
    x = 383,550,563.95/22,450.79
  6. Step 6: Final answer
    x = 17,084.06

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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.