Home / 12,031.90-18,042.38-3,710.36

Finding the Fourth Proportional to 12,031.90, 18,042.38 and 3,710.36

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Solution

The fourth proportional to 12,031.90, 18,042.38 and 3,710.36 is: 5,563.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.90 : 18,042.38 = 3,710.36 : x
  2. Step 2: Convert to fraction form
    12,031.90/18,042.38 = 3,710.36/x
  3. Step 3: Cross multiply
    12,031.90x = 18,042.38 × 3,710.36
  4. Step 4: Simplify right side
    12,031.90x = 66,943,725.06
  5. Step 5: Solve for x
    x = 66,943,725.06/12,031.90
  6. Step 6: Final answer
    x = 5,563.85

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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.