Home / 19,953.36-29,890.68-11,161.44

Finding the Fourth Proportional to 19,953.36, 29,890.68 and 11,161.44

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Solution

The fourth proportional to 19,953.36, 29,890.68 and 11,161.44 is: 16,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.36 : 29,890.68 = 11,161.44 : x
  2. Step 2: Convert to fraction form
    19,953.36/29,890.68 = 11,161.44/x
  3. Step 3: Cross multiply
    19,953.36x = 29,890.68 × 11,161.44
  4. Step 4: Simplify right side
    19,953.36x = 333,623,031.38
  5. Step 5: Solve for x
    x = 333,623,031.38/19,953.36
  6. Step 6: Final answer
    x = 16,720.14

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1.5x scale

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.