Home / 21,486.44-29,650.83-11,925.77

Finding the Fourth Proportional to 21,486.44, 29,650.83 and 11,925.77

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Solution

The fourth proportional to 21,486.44, 29,650.83 and 11,925.77 is: 16,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.44 : 29,650.83 = 11,925.77 : x
  2. Step 2: Convert to fraction form
    21,486.44/29,650.83 = 11,925.77/x
  3. Step 3: Cross multiply
    21,486.44x = 29,650.83 × 11,925.77
  4. Step 4: Simplify right side
    21,486.44x = 353,608,978.89
  5. Step 5: Solve for x
    x = 353,608,978.89/21,486.44
  6. Step 6: Final answer
    x = 16,457.31

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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.