Home / 21,682.36-29,926.66-14,115.52

Finding the Fourth Proportional to 21,682.36, 29,926.66 and 14,115.52

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Solution

The fourth proportional to 21,682.36, 29,926.66 and 14,115.52 is: 19,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.36 : 29,926.66 = 14,115.52 : x
  2. Step 2: Convert to fraction form
    21,682.36/29,926.66 = 14,115.52/x
  3. Step 3: Cross multiply
    21,682.36x = 29,926.66 × 14,115.52
  4. Step 4: Simplify right side
    21,682.36x = 422,430,228.01
  5. Step 5: Solve for x
    x = 422,430,228.01/21,682.36
  6. Step 6: Final answer
    x = 19,482.67

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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.