Home / 19,968.26-29,949.95-12,549.47

Finding the Fourth Proportional to 19,968.26, 29,949.95 and 12,549.47

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Solution

The fourth proportional to 19,968.26, 29,949.95 and 12,549.47 is: 18,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.26 : 29,949.95 = 12,549.47 : x
  2. Step 2: Convert to fraction form
    19,968.26/29,949.95 = 12,549.47/x
  3. Step 3: Cross multiply
    19,968.26x = 29,949.95 × 12,549.47
  4. Step 4: Simplify right side
    19,968.26x = 375,855,880.65
  5. Step 5: Solve for x
    x = 375,855,880.65/19,968.26
  6. Step 6: Final answer
    x = 18,822.67

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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.