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Finding the Fourth Proportional to 19,059, 28,556.92 and 13,484.72

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Solution

The fourth proportional to 19,059, 28,556.92 and 13,484.72 is: 20,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,059 : 28,556.92 = 13,484.72 : x
  2. Step 2: Convert to fraction form
    19,059/28,556.92 = 13,484.72/x
  3. Step 3: Cross multiply
    19,059x = 28,556.92 × 13,484.72
  4. Step 4: Simplify right side
    19,059x = 385,082,070.26
  5. Step 5: Solve for x
    x = 385,082,070.26/19,059
  6. Step 6: Final answer
    x = 20,204.74

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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.