Home / 19,099.29-28,668.38-13,558.89

Finding the Fourth Proportional to 19,099.29, 28,668.38 and 13,558.89

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Solution

The fourth proportional to 19,099.29, 28,668.38 and 13,558.89 is: 20,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.29 : 28,668.38 = 13,558.89 : x
  2. Step 2: Convert to fraction form
    19,099.29/28,668.38 = 13,558.89/x
  3. Step 3: Cross multiply
    19,099.29x = 28,668.38 × 13,558.89
  4. Step 4: Simplify right side
    19,099.29x = 388,711,343.10
  5. Step 5: Solve for x
    x = 388,711,343.10/19,099.29
  6. Step 6: Final answer
    x = 20,352.14

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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.