Home / 28,914.11-39,892.40-16,165.58

Finding the Fourth Proportional to 28,914.11, 39,892.40 and 16,165.58

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Solution

The fourth proportional to 28,914.11, 39,892.40 and 16,165.58 is: 22,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.11 : 39,892.40 = 16,165.58 : x
  2. Step 2: Convert to fraction form
    28,914.11/39,892.40 = 16,165.58/x
  3. Step 3: Cross multiply
    28,914.11x = 39,892.40 × 16,165.58
  4. Step 4: Simplify right side
    28,914.11x = 644,883,563.92
  5. Step 5: Solve for x
    x = 644,883,563.92/28,914.11
  6. Step 6: Final answer
    x = 22,303.42

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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.