Home / 19,846.41-27,389.43-13,120.35

Finding the Fourth Proportional to 19,846.41, 27,389.43 and 13,120.35

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Solution

The fourth proportional to 19,846.41, 27,389.43 and 13,120.35 is: 18,107.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,846.41 : 27,389.43 = 13,120.35 : x
  2. Step 2: Convert to fraction form
    19,846.41/27,389.43 = 13,120.35/x
  3. Step 3: Cross multiply
    19,846.41x = 27,389.43 × 13,120.35
  4. Step 4: Simplify right side
    19,846.41x = 359,358,907.90
  5. Step 5: Solve for x
    x = 359,358,907.90/19,846.41
  6. Step 6: Final answer
    x = 18,107.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.