Home / 19,826.10-27,361.28-13,099.94

Finding the Fourth Proportional to 19,826.10, 27,361.28 and 13,099.94

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Solution

The fourth proportional to 19,826.10, 27,361.28 and 13,099.94 is: 18,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,826.10 : 27,361.28 = 13,099.94 : x
  2. Step 2: Convert to fraction form
    19,826.10/27,361.28 = 13,099.94/x
  3. Step 3: Cross multiply
    19,826.10x = 27,361.28 × 13,099.94
  4. Step 4: Simplify right side
    19,826.10x = 358,431,126.32
  5. Step 5: Solve for x
    x = 358,431,126.32/19,826.10
  6. Step 6: Final answer
    x = 18,078.75

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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.