Home / 17,118.51-25,635.81-14,138.72

Finding the Fourth Proportional to 17,118.51, 25,635.81 and 14,138.72

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Solution

The fourth proportional to 17,118.51, 25,635.81 and 14,138.72 is: 21,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.51 : 25,635.81 = 14,138.72 : x
  2. Step 2: Convert to fraction form
    17,118.51/25,635.81 = 14,138.72/x
  3. Step 3: Cross multiply
    17,118.51x = 25,635.81 × 14,138.72
  4. Step 4: Simplify right side
    17,118.51x = 362,457,411.38
  5. Step 5: Solve for x
    x = 362,457,411.38/17,118.51
  6. Step 6: Final answer
    x = 21,173.42

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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.