Home / 20,675.01-28,498.32-13,958.49

Finding the Fourth Proportional to 20,675.01, 28,498.32 and 13,958.49

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Solution

The fourth proportional to 20,675.01, 28,498.32 and 13,958.49 is: 19,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.01 : 28,498.32 = 13,958.49 : x
  2. Step 2: Convert to fraction form
    20,675.01/28,498.32 = 13,958.49/x
  3. Step 3: Cross multiply
    20,675.01x = 28,498.32 × 13,958.49
  4. Step 4: Simplify right side
    20,675.01x = 397,793,514.74
  5. Step 5: Solve for x
    x = 397,793,514.74/20,675.01
  6. Step 6: Final answer
    x = 19,240.31

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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.