Home / 21,458.44-29,612.33-11,898.34

Finding the Fourth Proportional to 21,458.44, 29,612.33 and 11,898.34

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Solution

The fourth proportional to 21,458.44, 29,612.33 and 11,898.34 is: 16,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.44 : 29,612.33 = 11,898.34 : x
  2. Step 2: Convert to fraction form
    21,458.44/29,612.33 = 11,898.34/x
  3. Step 3: Cross multiply
    21,458.44x = 29,612.33 × 11,898.34
  4. Step 4: Simplify right side
    21,458.44x = 352,337,481.63
  5. Step 5: Solve for x
    x = 352,337,481.63/21,458.44
  6. Step 6: Final answer
    x = 16,419.53

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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.