Home / 27,955.48-38,576.84-15,208.56

Finding the Fourth Proportional to 27,955.48, 38,576.84 and 15,208.56

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Solution

The fourth proportional to 27,955.48, 38,576.84 and 15,208.56 is: 20,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.48 : 38,576.84 = 15,208.56 : x
  2. Step 2: Convert to fraction form
    27,955.48/38,576.84 = 15,208.56/x
  3. Step 3: Cross multiply
    27,955.48x = 38,576.84 × 15,208.56
  4. Step 4: Simplify right side
    27,955.48x = 586,698,185.75
  5. Step 5: Solve for x
    x = 586,698,185.75/27,955.48
  6. Step 6: Final answer
    x = 20,986.88

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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.