Home / 28,907.34-39,886.92-16,160.78

Finding the Fourth Proportional to 28,907.34, 39,886.92 and 16,160.78

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Solution

The fourth proportional to 28,907.34, 39,886.92 and 16,160.78 is: 22,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.34 : 39,886.92 = 16,160.78 : x
  2. Step 2: Convert to fraction form
    28,907.34/39,886.92 = 16,160.78/x
  3. Step 3: Cross multiply
    28,907.34x = 39,886.92 × 16,160.78
  4. Step 4: Simplify right side
    28,907.34x = 644,603,539.56
  5. Step 5: Solve for x
    x = 644,603,539.56/28,907.34
  6. Step 6: Final answer
    x = 22,298.96

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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.