Home / 19,916.69-29,880.14-5,876.15

Finding the Fourth Proportional to 19,916.69, 29,880.14 and 5,876.15

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Solution

The fourth proportional to 19,916.69, 29,880.14 and 5,876.15 is: 8,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.69 : 29,880.14 = 5,876.15 : x
  2. Step 2: Convert to fraction form
    19,916.69/29,880.14 = 5,876.15/x
  3. Step 3: Cross multiply
    19,916.69x = 29,880.14 × 5,876.15
  4. Step 4: Simplify right side
    19,916.69x = 175,580,038.93
  5. Step 5: Solve for x
    x = 175,580,038.93/19,916.69
  6. Step 6: Final answer
    x = 8,815.73

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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.