Home / 28,367.80-42,544.86-12,564.09

Finding the Fourth Proportional to 28,367.80, 42,544.86 and 12,564.09

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Solution

The fourth proportional to 28,367.80, 42,544.86 and 12,564.09 is: 18,843.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.80 : 42,544.86 = 12,564.09 : x
  2. Step 2: Convert to fraction form
    28,367.80/42,544.86 = 12,564.09/x
  3. Step 3: Cross multiply
    28,367.80x = 42,544.86 × 12,564.09
  4. Step 4: Simplify right side
    28,367.80x = 534,537,450.08
  5. Step 5: Solve for x
    x = 534,537,450.08/28,367.80
  6. Step 6: Final answer
    x = 18,843.11

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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.