Home / 20,693.90-28,557.26-12,194.67

Finding the Fourth Proportional to 20,693.90, 28,557.26 and 12,194.67

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Solution

The fourth proportional to 20,693.90, 28,557.26 and 12,194.67 is: 16,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.90 : 28,557.26 = 12,194.67 : x
  2. Step 2: Convert to fraction form
    20,693.90/28,557.26 = 12,194.67/x
  3. Step 3: Cross multiply
    20,693.90x = 28,557.26 × 12,194.67
  4. Step 4: Simplify right side
    20,693.90x = 348,246,293.02
  5. Step 5: Solve for x
    x = 348,246,293.02/20,693.90
  6. Step 6: Final answer
    x = 16,828.45

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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.