Home / 39,708.83-54,797.82-21,804.59

Finding the Fourth Proportional to 39,708.83, 54,797.82 and 21,804.59

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Solution

The fourth proportional to 39,708.83, 54,797.82 and 21,804.59 is: 30,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,708.83 : 54,797.82 = 21,804.59 : x
  2. Step 2: Convert to fraction form
    39,708.83/54,797.82 = 21,804.59/x
  3. Step 3: Cross multiply
    39,708.83x = 54,797.82 × 21,804.59
  4. Step 4: Simplify right side
    39,708.83x = 1,194,843,997.99
  5. Step 5: Solve for x
    x = 1,194,843,997.99/39,708.83
  6. Step 6: Final answer
    x = 30,090.13

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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.