Home / 19,018.50-28,496.85-11,600.43

Finding the Fourth Proportional to 19,018.50, 28,496.85 and 11,600.43

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Solution

The fourth proportional to 19,018.50, 28,496.85 and 11,600.43 is: 17,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.50 : 28,496.85 = 11,600.43 : x
  2. Step 2: Convert to fraction form
    19,018.50/28,496.85 = 11,600.43/x
  3. Step 3: Cross multiply
    19,018.50x = 28,496.85 × 11,600.43
  4. Step 4: Simplify right side
    19,018.50x = 330,575,713.65
  5. Step 5: Solve for x
    x = 330,575,713.65/19,018.50
  6. Step 6: Final answer
    x = 17,381.80

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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.