Home / 18,916.68-28,400.10-16,161.06

Finding the Fourth Proportional to 18,916.68, 28,400.10 and 16,161.06

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Solution

The fourth proportional to 18,916.68, 28,400.10 and 16,161.06 is: 24,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.68 : 28,400.10 = 16,161.06 : x
  2. Step 2: Convert to fraction form
    18,916.68/28,400.10 = 16,161.06/x
  3. Step 3: Cross multiply
    18,916.68x = 28,400.10 × 16,161.06
  4. Step 4: Simplify right side
    18,916.68x = 458,975,720.11
  5. Step 5: Solve for x
    x = 458,975,720.11/18,916.68
  6. Step 6: Final answer
    x = 24,263.02

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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.