Home / 20,446.74-28,217.31-11,954.34

Finding the Fourth Proportional to 20,446.74, 28,217.31 and 11,954.34

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Solution

The fourth proportional to 20,446.74, 28,217.31 and 11,954.34 is: 16,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.74 : 28,217.31 = 11,954.34 : x
  2. Step 2: Convert to fraction form
    20,446.74/28,217.31 = 11,954.34/x
  3. Step 3: Cross multiply
    20,446.74x = 28,217.31 × 11,954.34
  4. Step 4: Simplify right side
    20,446.74x = 337,319,317.63
  5. Step 5: Solve for x
    x = 337,319,317.63/20,446.74
  6. Step 6: Final answer
    x = 16,497.46

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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.