Home / 21,571.96-29,764.38-12,137.08

Finding the Fourth Proportional to 21,571.96, 29,764.38 and 12,137.08

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Solution

The fourth proportional to 21,571.96, 29,764.38 and 12,137.08 is: 16,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.96 : 29,764.38 = 12,137.08 : x
  2. Step 2: Convert to fraction form
    21,571.96/29,764.38 = 12,137.08/x
  3. Step 3: Cross multiply
    21,571.96x = 29,764.38 × 12,137.08
  4. Step 4: Simplify right side
    21,571.96x = 361,252,661.21
  5. Step 5: Solve for x
    x = 361,252,661.21/21,571.96
  6. Step 6: Final answer
    x = 16,746.40

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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.