Home / 28,756.70-39,682.09-16,179.02

Finding the Fourth Proportional to 28,756.70, 39,682.09 and 16,179.02

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Solution

The fourth proportional to 28,756.70, 39,682.09 and 16,179.02 is: 22,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.70 : 39,682.09 = 16,179.02 : x
  2. Step 2: Convert to fraction form
    28,756.70/39,682.09 = 16,179.02/x
  3. Step 3: Cross multiply
    28,756.70x = 39,682.09 × 16,179.02
  4. Step 4: Simplify right side
    28,756.70x = 642,017,327.75
  5. Step 5: Solve for x
    x = 642,017,327.75/28,756.70
  6. Step 6: Final answer
    x = 22,325.83

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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.