Home / 12,020.70-18,031.95-3,255.48

Finding the Fourth Proportional to 12,020.70, 18,031.95 and 3,255.48

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Solution

The fourth proportional to 12,020.70, 18,031.95 and 3,255.48 is: 4,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.70 : 18,031.95 = 3,255.48 : x
  2. Step 2: Convert to fraction form
    12,020.70/18,031.95 = 3,255.48/x
  3. Step 3: Cross multiply
    12,020.70x = 18,031.95 × 3,255.48
  4. Step 4: Simplify right side
    12,020.70x = 58,702,652.59
  5. Step 5: Solve for x
    x = 58,702,652.59/12,020.70
  6. Step 6: Final answer
    x = 4,883.46

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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.