Home / 19,922.41-29,880.67-7,440.87

Finding the Fourth Proportional to 19,922.41, 29,880.67 and 7,440.87

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Solution

The fourth proportional to 19,922.41, 29,880.67 and 7,440.87 is: 11,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.41 : 29,880.67 = 7,440.87 : x
  2. Step 2: Convert to fraction form
    19,922.41/29,880.67 = 7,440.87/x
  3. Step 3: Cross multiply
    19,922.41x = 29,880.67 × 7,440.87
  4. Step 4: Simplify right side
    19,922.41x = 222,338,180.98
  5. Step 5: Solve for x
    x = 222,338,180.98/19,922.41
  6. Step 6: Final answer
    x = 11,160.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.