Home / 22,278.75-30,744.69-12,342.75

Finding the Fourth Proportional to 22,278.75, 30,744.69 and 12,342.75

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Solution

The fourth proportional to 22,278.75, 30,744.69 and 12,342.75 is: 17,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.75 : 30,744.69 = 12,342.75 : x
  2. Step 2: Convert to fraction form
    22,278.75/30,744.69 = 12,342.75/x
  3. Step 3: Cross multiply
    22,278.75x = 30,744.69 × 12,342.75
  4. Step 4: Simplify right side
    22,278.75x = 379,474,022.50
  5. Step 5: Solve for x
    x = 379,474,022.50/22,278.75
  6. Step 6: Final answer
    x = 17,033.00

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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.