Home / 22,376.85-30,880.26-12,305.36

Finding the Fourth Proportional to 22,376.85, 30,880.26 and 12,305.36

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Solution

The fourth proportional to 22,376.85, 30,880.26 and 12,305.36 is: 16,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.85 : 30,880.26 = 12,305.36 : x
  2. Step 2: Convert to fraction form
    22,376.85/30,880.26 = 12,305.36/x
  3. Step 3: Cross multiply
    22,376.85x = 30,880.26 × 12,305.36
  4. Step 4: Simplify right side
    22,376.85x = 379,992,561.79
  5. Step 5: Solve for x
    x = 379,992,561.79/22,376.85
  6. Step 6: Final answer
    x = 16,981.50

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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.