Home / 27,928.36-38,538.66-15,352.84

Finding the Fourth Proportional to 27,928.36, 38,538.66 and 15,352.84

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Solution

The fourth proportional to 27,928.36, 38,538.66 and 15,352.84 is: 21,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.36 : 38,538.66 = 15,352.84 : x
  2. Step 2: Convert to fraction form
    27,928.36/38,538.66 = 15,352.84/x
  3. Step 3: Cross multiply
    27,928.36x = 38,538.66 × 15,352.84
  4. Step 4: Simplify right side
    27,928.36x = 591,677,880.79
  5. Step 5: Solve for x
    x = 591,677,880.79/27,928.36
  6. Step 6: Final answer
    x = 21,185.56

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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.