Home / 19,916.10-29,918.70-16,635.60

Finding the Fourth Proportional to 19,916.10, 29,918.70 and 16,635.60

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Solution

The fourth proportional to 19,916.10, 29,918.70 and 16,635.60 is: 24,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.10 : 29,918.70 = 16,635.60 : x
  2. Step 2: Convert to fraction form
    19,916.10/29,918.70 = 16,635.60/x
  3. Step 3: Cross multiply
    19,916.10x = 29,918.70 × 16,635.60
  4. Step 4: Simplify right side
    19,916.10x = 497,715,525.72
  5. Step 5: Solve for x
    x = 497,715,525.72/19,916.10
  6. Step 6: Final answer
    x = 24,990.61

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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.