Home / 21,946.44-30,286.62-12,515.16

Finding the Fourth Proportional to 21,946.44, 30,286.62 and 12,515.16

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Solution

The fourth proportional to 21,946.44, 30,286.62 and 12,515.16 is: 17,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.44 : 30,286.62 = 12,515.16 : x
  2. Step 2: Convert to fraction form
    21,946.44/30,286.62 = 12,515.16/x
  3. Step 3: Cross multiply
    21,946.44x = 30,286.62 × 12,515.16
  4. Step 4: Simplify right side
    21,946.44x = 379,041,895.16
  5. Step 5: Solve for x
    x = 379,041,895.16/21,946.44
  6. Step 6: Final answer
    x = 17,271.22

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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.