Home / 20,650.62-28,504.56-12,152.28

Finding the Fourth Proportional to 20,650.62, 28,504.56 and 12,152.28

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Solution

The fourth proportional to 20,650.62, 28,504.56 and 12,152.28 is: 16,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.62 : 28,504.56 = 12,152.28 : x
  2. Step 2: Convert to fraction form
    20,650.62/28,504.56 = 12,152.28/x
  3. Step 3: Cross multiply
    20,650.62x = 28,504.56 × 12,152.28
  4. Step 4: Simplify right side
    20,650.62x = 346,395,394.40
  5. Step 5: Solve for x
    x = 346,395,394.40/20,650.62
  6. Step 6: Final answer
    x = 16,774.09

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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.