Home / 27,953.88-38,576.34-15,378.54

Finding the Fourth Proportional to 27,953.88, 38,576.34 and 15,378.54

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Solution

The fourth proportional to 27,953.88, 38,576.34 and 15,378.54 is: 21,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.88 : 38,576.34 = 15,378.54 : x
  2. Step 2: Convert to fraction form
    27,953.88/38,576.34 = 15,378.54/x
  3. Step 3: Cross multiply
    27,953.88x = 38,576.34 × 15,378.54
  4. Step 4: Simplify right side
    27,953.88x = 593,247,787.74
  5. Step 5: Solve for x
    x = 593,247,787.74/27,953.88
  6. Step 6: Final answer
    x = 21,222.38

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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.