Home / 20,553.57-28,360.90-12,052.48

Finding the Fourth Proportional to 20,553.57, 28,360.90 and 12,052.48

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Solution

The fourth proportional to 20,553.57, 28,360.90 and 12,052.48 is: 16,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.57 : 28,360.90 = 12,052.48 : x
  2. Step 2: Convert to fraction form
    20,553.57/28,360.90 = 12,052.48/x
  3. Step 3: Cross multiply
    20,553.57x = 28,360.90 × 12,052.48
  4. Step 4: Simplify right side
    20,553.57x = 341,819,180.03
  5. Step 5: Solve for x
    x = 341,819,180.03/20,553.57
  6. Step 6: Final answer
    x = 16,630.65

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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.