Home / 28,569.22-39,421.82-15,993.98

Finding the Fourth Proportional to 28,569.22, 39,421.82 and 15,993.98

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Solution

The fourth proportional to 28,569.22, 39,421.82 and 15,993.98 is: 22,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.22 : 39,421.82 = 15,993.98 : x
  2. Step 2: Convert to fraction form
    28,569.22/39,421.82 = 15,993.98/x
  3. Step 3: Cross multiply
    28,569.22x = 39,421.82 × 15,993.98
  4. Step 4: Simplify right side
    28,569.22x = 630,511,800.64
  5. Step 5: Solve for x
    x = 630,511,800.64/28,569.22
  6. Step 6: Final answer
    x = 22,069.62

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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.