Home / 21,568.62-29,764.63-12,137.19

Finding the Fourth Proportional to 21,568.62, 29,764.63 and 12,137.19

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Solution

The fourth proportional to 21,568.62, 29,764.63 and 12,137.19 is: 16,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.62 : 29,764.63 = 12,137.19 : x
  2. Step 2: Convert to fraction form
    21,568.62/29,764.63 = 12,137.19/x
  3. Step 3: Cross multiply
    21,568.62x = 29,764.63 × 12,137.19
  4. Step 4: Simplify right side
    21,568.62x = 361,258,969.59
  5. Step 5: Solve for x
    x = 361,258,969.59/21,568.62
  6. Step 6: Final answer
    x = 16,749.29

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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.