Home / 21,634.20-29,854.26-12,203.64

Finding the Fourth Proportional to 21,634.20, 29,854.26 and 12,203.64

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Solution

The fourth proportional to 21,634.20, 29,854.26 and 12,203.64 is: 16,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.20 : 29,854.26 = 12,203.64 : x
  2. Step 2: Convert to fraction form
    21,634.20/29,854.26 = 12,203.64/x
  3. Step 3: Cross multiply
    21,634.20x = 29,854.26 × 12,203.64
  4. Step 4: Simplify right side
    21,634.20x = 364,330,641.51
  5. Step 5: Solve for x
    x = 364,330,641.51/21,634.20
  6. Step 6: Final answer
    x = 16,840.50

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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.