Home / 20,365.98-28,115.55-14,067.42

Finding the Fourth Proportional to 20,365.98, 28,115.55 and 14,067.42

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Solution

The fourth proportional to 20,365.98, 28,115.55 and 14,067.42 is: 19,420.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.98 : 28,115.55 = 14,067.42 : x
  2. Step 2: Convert to fraction form
    20,365.98/28,115.55 = 14,067.42/x
  3. Step 3: Cross multiply
    20,365.98x = 28,115.55 × 14,067.42
  4. Step 4: Simplify right side
    20,365.98x = 395,513,250.38
  5. Step 5: Solve for x
    x = 395,513,250.38/20,365.98
  6. Step 6: Final answer
    x = 19,420.29

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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.