Home / 20,622.60-28,460.56-11,670.48

Finding the Fourth Proportional to 20,622.60, 28,460.56 and 11,670.48

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Solution

The fourth proportional to 20,622.60, 28,460.56 and 11,670.48 is: 16,106.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.60 : 28,460.56 = 11,670.48 : x
  2. Step 2: Convert to fraction form
    20,622.60/28,460.56 = 11,670.48/x
  3. Step 3: Cross multiply
    20,622.60x = 28,460.56 × 11,670.48
  4. Step 4: Simplify right side
    20,622.60x = 332,148,396.27
  5. Step 5: Solve for x
    x = 332,148,396.27/20,622.60
  6. Step 6: Final answer
    x = 16,106.04

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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.