Home / 19,236.88-28,865.48-13,650.64

Finding the Fourth Proportional to 19,236.88, 28,865.48 and 13,650.64

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Solution

The fourth proportional to 19,236.88, 28,865.48 and 13,650.64 is: 20,483.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.88 : 28,865.48 = 13,650.64 : x
  2. Step 2: Convert to fraction form
    19,236.88/28,865.48 = 13,650.64/x
  3. Step 3: Cross multiply
    19,236.88x = 28,865.48 × 13,650.64
  4. Step 4: Simplify right side
    19,236.88x = 394,032,275.91
  5. Step 5: Solve for x
    x = 394,032,275.91/19,236.88
  6. Step 6: Final answer
    x = 20,483.17

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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.