Home / 21,633.39-29,854.35-13,249.89

Finding the Fourth Proportional to 21,633.39, 29,854.35 and 13,249.89

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Solution

The fourth proportional to 21,633.39, 29,854.35 and 13,249.89 is: 18,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.39 : 29,854.35 = 13,249.89 : x
  2. Step 2: Convert to fraction form
    21,633.39/29,854.35 = 13,249.89/x
  3. Step 3: Cross multiply
    21,633.39x = 29,854.35 × 13,249.89
  4. Step 4: Simplify right side
    21,633.39x = 395,566,853.52
  5. Step 5: Solve for x
    x = 395,566,853.52/21,633.39
  6. Step 6: Final answer
    x = 18,285.01

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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.