Home / 39,261.35-54,182.09-21,799.16

Finding the Fourth Proportional to 39,261.35, 54,182.09 and 21,799.16

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Solution

The fourth proportional to 39,261.35, 54,182.09 and 21,799.16 is: 30,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.35 : 54,182.09 = 21,799.16 : x
  2. Step 2: Convert to fraction form
    39,261.35/54,182.09 = 21,799.16/x
  3. Step 3: Cross multiply
    39,261.35x = 54,182.09 × 21,799.16
  4. Step 4: Simplify right side
    39,261.35x = 1,181,124,239.00
  5. Step 5: Solve for x
    x = 1,181,124,239.00/39,261.35
  6. Step 6: Final answer
    x = 30,083.64

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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.