Home / 22,011.76-30,376.32-12,580.64

Finding the Fourth Proportional to 22,011.76, 30,376.32 and 12,580.64

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Solution

The fourth proportional to 22,011.76, 30,376.32 and 12,580.64 is: 17,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.76 : 30,376.32 = 12,580.64 : x
  2. Step 2: Convert to fraction form
    22,011.76/30,376.32 = 12,580.64/x
  3. Step 3: Cross multiply
    22,011.76x = 30,376.32 × 12,580.64
  4. Step 4: Simplify right side
    22,011.76x = 382,153,546.44
  5. Step 5: Solve for x
    x = 382,153,546.44/22,011.76
  6. Step 6: Final answer
    x = 17,361.34

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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.