Home / 27,955.50-38,576.82-15,208.56

Finding the Fourth Proportional to 27,955.50, 38,576.82 and 15,208.56

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Solution

The fourth proportional to 27,955.50, 38,576.82 and 15,208.56 is: 20,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.50 : 38,576.82 = 15,208.56 : x
  2. Step 2: Convert to fraction form
    27,955.50/38,576.82 = 15,208.56/x
  3. Step 3: Cross multiply
    27,955.50x = 38,576.82 × 15,208.56
  4. Step 4: Simplify right side
    27,955.50x = 586,697,881.58
  5. Step 5: Solve for x
    x = 586,697,881.58/27,955.50
  6. Step 6: Final answer
    x = 20,986.85

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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.