Home / 38,481.99-53,105.97-21,254.31

Finding the Fourth Proportional to 38,481.99, 53,105.97 and 21,254.31

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Solution

The fourth proportional to 38,481.99, 53,105.97 and 21,254.31 is: 29,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.99 : 53,105.97 = 21,254.31 : x
  2. Step 2: Convert to fraction form
    38,481.99/53,105.97 = 21,254.31/x
  3. Step 3: Cross multiply
    38,481.99x = 53,105.97 × 21,254.31
  4. Step 4: Simplify right side
    38,481.99x = 1,128,730,749.23
  5. Step 5: Solve for x
    x = 1,128,730,749.23/38,481.99
  6. Step 6: Final answer
    x = 29,331.40

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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.