Home / 38,976.03-53,786.75-21,071.03

Finding the Fourth Proportional to 38,976.03, 53,786.75 and 21,071.03

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Solution

The fourth proportional to 38,976.03, 53,786.75 and 21,071.03 is: 29,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,976.03 : 53,786.75 = 21,071.03 : x
  2. Step 2: Convert to fraction form
    38,976.03/53,786.75 = 21,071.03/x
  3. Step 3: Cross multiply
    38,976.03x = 53,786.75 × 21,071.03
  4. Step 4: Simplify right side
    38,976.03x = 1,133,342,006.60
  5. Step 5: Solve for x
    x = 1,133,342,006.60/38,976.03
  6. Step 6: Final answer
    x = 29,077.92

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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.