Home / 39,023.33-53,852.19-21,118.33

Finding the Fourth Proportional to 39,023.33, 53,852.19 and 21,118.33

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Solution

The fourth proportional to 39,023.33, 53,852.19 and 21,118.33 is: 29,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023.33 : 53,852.19 = 21,118.33 : x
  2. Step 2: Convert to fraction form
    39,023.33/53,852.19 = 21,118.33/x
  3. Step 3: Cross multiply
    39,023.33x = 53,852.19 × 21,118.33
  4. Step 4: Simplify right side
    39,023.33x = 1,137,268,319.64
  5. Step 5: Solve for x
    x = 1,137,268,319.64/39,023.33
  6. Step 6: Final answer
    x = 29,143.29

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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.