Home / 19,197.65-28,748.39-12,156.41

Finding the Fourth Proportional to 19,197.65, 28,748.39 and 12,156.41

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Solution

The fourth proportional to 19,197.65, 28,748.39 and 12,156.41 is: 18,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.65 : 28,748.39 = 12,156.41 : x
  2. Step 2: Convert to fraction form
    19,197.65/28,748.39 = 12,156.41/x
  3. Step 3: Cross multiply
    19,197.65x = 28,748.39 × 12,156.41
  4. Step 4: Simplify right side
    19,197.65x = 349,477,011.16
  5. Step 5: Solve for x
    x = 349,477,011.16/19,197.65
  6. Step 6: Final answer
    x = 18,204.16

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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.