Home / 22,376.90-30,880.32-12,305.10

Finding the Fourth Proportional to 22,376.90, 30,880.32 and 12,305.10

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Solution

The fourth proportional to 22,376.90, 30,880.32 and 12,305.10 is: 16,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.90 : 30,880.32 = 12,305.10 : x
  2. Step 2: Convert to fraction form
    22,376.90/30,880.32 = 12,305.10/x
  3. Step 3: Cross multiply
    22,376.90x = 30,880.32 × 12,305.10
  4. Step 4: Simplify right side
    22,376.90x = 379,985,425.63
  5. Step 5: Solve for x
    x = 379,985,425.63/22,376.90
  6. Step 6: Final answer
    x = 16,981.15

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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.