Home / 28,178.66-38,877.11-16,241.75

Finding the Fourth Proportional to 28,178.66, 38,877.11 and 16,241.75

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Solution

The fourth proportional to 28,178.66, 38,877.11 and 16,241.75 is: 22,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.66 : 38,877.11 = 16,241.75 : x
  2. Step 2: Convert to fraction form
    28,178.66/38,877.11 = 16,241.75/x
  3. Step 3: Cross multiply
    28,178.66x = 38,877.11 × 16,241.75
  4. Step 4: Simplify right side
    28,178.66x = 631,432,232.44
  5. Step 5: Solve for x
    x = 631,432,232.44/28,178.66
  6. Step 6: Final answer
    x = 22,408.17

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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.