Home / 19,005.80-28,513.34-13,394.42

Finding the Fourth Proportional to 19,005.80, 28,513.34 and 13,394.42

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Solution

The fourth proportional to 19,005.80, 28,513.34 and 13,394.42 is: 20,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.80 : 28,513.34 = 13,394.42 : x
  2. Step 2: Convert to fraction form
    19,005.80/28,513.34 = 13,394.42/x
  3. Step 3: Cross multiply
    19,005.80x = 28,513.34 × 13,394.42
  4. Step 4: Simplify right side
    19,005.80x = 381,919,651.56
  5. Step 5: Solve for x
    x = 381,919,651.56/19,005.80
  6. Step 6: Final answer
    x = 20,094.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.