Home / 38,031.76-57,056.72-11,380

Finding the Fourth Proportional to 38,031.76, 57,056.72 and 11,380

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Solution

The fourth proportional to 38,031.76, 57,056.72 and 11,380 is: 17,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,031.76 : 57,056.72 = 11,380 : x
  2. Step 2: Convert to fraction form
    38,031.76/57,056.72 = 11,380/x
  3. Step 3: Cross multiply
    38,031.76x = 57,056.72 × 11,380
  4. Step 4: Simplify right side
    38,031.76x = 649,305,473.60
  5. Step 5: Solve for x
    x = 649,305,473.60/38,031.76
  6. Step 6: Final answer
    x = 17,072.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.