Home / 27,803.25-38,369.43-15,228.81

Finding the Fourth Proportional to 27,803.25, 38,369.43 and 15,228.81

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Solution

The fourth proportional to 27,803.25, 38,369.43 and 15,228.81 is: 21,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.25 : 38,369.43 = 15,228.81 : x
  2. Step 2: Convert to fraction form
    27,803.25/38,369.43 = 15,228.81/x
  3. Step 3: Cross multiply
    27,803.25x = 38,369.43 × 15,228.81
  4. Step 4: Simplify right side
    27,803.25x = 584,320,759.28
  5. Step 5: Solve for x
    x = 584,320,759.28/27,803.25
  6. Step 6: Final answer
    x = 21,016.28

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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.