Home / 20,576.34-30,877.11-8,889.30

Finding the Fourth Proportional to 20,576.34, 30,877.11 and 8,889.30

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Solution

The fourth proportional to 20,576.34, 30,877.11 and 8,889.30 is: 13,339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.34 : 30,877.11 = 8,889.30 : x
  2. Step 2: Convert to fraction form
    20,576.34/30,877.11 = 8,889.30/x
  3. Step 3: Cross multiply
    20,576.34x = 30,877.11 × 8,889.30
  4. Step 4: Simplify right side
    20,576.34x = 274,475,893.92
  5. Step 5: Solve for x
    x = 274,475,893.92/20,576.34
  6. Step 6: Final answer
    x = 13,339.39

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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.