Home / 38,504.36-53,138.75-21,511.46

Finding the Fourth Proportional to 38,504.36, 53,138.75 and 21,511.46

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Solution

The fourth proportional to 38,504.36, 53,138.75 and 21,511.46 is: 29,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,504.36 : 53,138.75 = 21,511.46 : x
  2. Step 2: Convert to fraction form
    38,504.36/53,138.75 = 21,511.46/x
  3. Step 3: Cross multiply
    38,504.36x = 53,138.75 × 21,511.46
  4. Step 4: Simplify right side
    38,504.36x = 1,143,091,721.82
  5. Step 5: Solve for x
    x = 1,143,091,721.82/38,504.36
  6. Step 6: Final answer
    x = 29,687.34

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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.