Home / 21,673.26-29,910.32-12,723.36

Finding the Fourth Proportional to 21,673.26, 29,910.32 and 12,723.36

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Solution

The fourth proportional to 21,673.26, 29,910.32 and 12,723.36 is: 17,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.26 : 29,910.32 = 12,723.36 : x
  2. Step 2: Convert to fraction form
    21,673.26/29,910.32 = 12,723.36/x
  3. Step 3: Cross multiply
    21,673.26x = 29,910.32 × 12,723.36
  4. Step 4: Simplify right side
    21,673.26x = 380,559,705.46
  5. Step 5: Solve for x
    x = 380,559,705.46/21,673.26
  6. Step 6: Final answer
    x = 17,558.95

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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.