Home / 39,348.06-54,300.24-21,443.03

Finding the Fourth Proportional to 39,348.06, 54,300.24 and 21,443.03

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Solution

The fourth proportional to 39,348.06, 54,300.24 and 21,443.03 is: 29,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.06 : 54,300.24 = 21,443.03 : x
  2. Step 2: Convert to fraction form
    39,348.06/54,300.24 = 21,443.03/x
  3. Step 3: Cross multiply
    39,348.06x = 54,300.24 × 21,443.03
  4. Step 4: Simplify right side
    39,348.06x = 1,164,361,675.33
  5. Step 5: Solve for x
    x = 1,164,361,675.33/39,348.06
  6. Step 6: Final answer
    x = 29,591.34

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Double scale
Find fourth proportional to 39,349.06, 54,301.62 and 21,444.03
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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.