Home / 30,128.63-41,576.36-16,700.09

Finding the Fourth Proportional to 30,128.63, 41,576.36 and 16,700.09

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Solution

The fourth proportional to 30,128.63, 41,576.36 and 16,700.09 is: 23,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.63 : 41,576.36 = 16,700.09 : x
  2. Step 2: Convert to fraction form
    30,128.63/41,576.36 = 16,700.09/x
  3. Step 3: Cross multiply
    30,128.63x = 41,576.36 × 16,700.09
  4. Step 4: Simplify right side
    30,128.63x = 694,328,662.49
  5. Step 5: Solve for x
    x = 694,328,662.49/30,128.63
  6. Step 6: Final answer
    x = 23,045.48

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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.