Home / 22,812.89-34,280.08-12,290.99

Finding the Fourth Proportional to 22,812.89, 34,280.08 and 12,290.99

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Solution

The fourth proportional to 22,812.89, 34,280.08 and 12,290.99 is: 18,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.89 : 34,280.08 = 12,290.99 : x
  2. Step 2: Convert to fraction form
    22,812.89/34,280.08 = 12,290.99/x
  3. Step 3: Cross multiply
    22,812.89x = 34,280.08 × 12,290.99
  4. Step 4: Simplify right side
    22,812.89x = 421,335,887.62
  5. Step 5: Solve for x
    x = 421,335,887.62/22,812.89
  6. Step 6: Final answer
    x = 18,469.21

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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.