Home / 21,467.26-29,618.76-13,913.91

Finding the Fourth Proportional to 21,467.26, 29,618.76 and 13,913.91

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Solution

The fourth proportional to 21,467.26, 29,618.76 and 13,913.91 is: 19,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.26 : 29,618.76 = 13,913.91 : x
  2. Step 2: Convert to fraction form
    21,467.26/29,618.76 = 13,913.91/x
  3. Step 3: Cross multiply
    21,467.26x = 29,618.76 × 13,913.91
  4. Step 4: Simplify right side
    21,467.26x = 412,112,813.13
  5. Step 5: Solve for x
    x = 412,112,813.13/21,467.26
  6. Step 6: Final answer
    x = 19,197.27

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1.5x scale

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.