Home / 19,310.07-28,969.35-10,993.98

Finding the Fourth Proportional to 19,310.07, 28,969.35 and 10,993.98

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Solution

The fourth proportional to 19,310.07, 28,969.35 and 10,993.98 is: 16,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.07 : 28,969.35 = 10,993.98 : x
  2. Step 2: Convert to fraction form
    19,310.07/28,969.35 = 10,993.98/x
  3. Step 3: Cross multiply
    19,310.07x = 28,969.35 × 10,993.98
  4. Step 4: Simplify right side
    19,310.07x = 318,488,454.51
  5. Step 5: Solve for x
    x = 318,488,454.51/19,310.07
  6. Step 6: Final answer
    x = 16,493.39

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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.