Home / 21,485.22-29,650.77-12,053.58

Finding the Fourth Proportional to 21,485.22, 29,650.77 and 12,053.58

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Solution

The fourth proportional to 21,485.22, 29,650.77 and 12,053.58 is: 16,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.22 : 29,650.77 = 12,053.58 : x
  2. Step 2: Convert to fraction form
    21,485.22/29,650.77 = 12,053.58/x
  3. Step 3: Cross multiply
    21,485.22x = 29,650.77 × 12,053.58
  4. Step 4: Simplify right side
    21,485.22x = 357,397,928.26
  5. Step 5: Solve for x
    x = 357,397,928.26/21,485.22
  6. Step 6: Final answer
    x = 16,634.59

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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.