Home / 27,727.63-38,268.57-21,804.28

Finding the Fourth Proportional to 27,727.63, 38,268.57 and 21,804.28

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Solution

The fourth proportional to 27,727.63, 38,268.57 and 21,804.28 is: 30,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.63 : 38,268.57 = 21,804.28 : x
  2. Step 2: Convert to fraction form
    27,727.63/38,268.57 = 21,804.28/x
  3. Step 3: Cross multiply
    27,727.63x = 38,268.57 × 21,804.28
  4. Step 4: Simplify right side
    27,727.63x = 834,418,615.48
  5. Step 5: Solve for x
    x = 834,418,615.48/27,727.63
  6. Step 6: Final answer
    x = 30,093.40

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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.