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Finding the Fourth Proportional to 28,006.70, 41,973.15 and 20,576.30

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Solution

The fourth proportional to 28,006.70, 41,973.15 and 20,576.30 is: 30,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.70 : 41,973.15 = 20,576.30 : x
  2. Step 2: Convert to fraction form
    28,006.70/41,973.15 = 20,576.30/x
  3. Step 3: Cross multiply
    28,006.70x = 41,973.15 × 20,576.30
  4. Step 4: Simplify right side
    28,006.70x = 863,652,126.35
  5. Step 5: Solve for x
    x = 863,652,126.35/28,006.70
  6. Step 6: Final answer
    x = 30,837.34

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1.5x scale

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.