Home / 28,755.36-39,682.12-16,179.84

Finding the Fourth Proportional to 28,755.36, 39,682.12 and 16,179.84

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Solution

The fourth proportional to 28,755.36, 39,682.12 and 16,179.84 is: 22,328.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.36 : 39,682.12 = 16,179.84 : x
  2. Step 2: Convert to fraction form
    28,755.36/39,682.12 = 16,179.84/x
  3. Step 3: Cross multiply
    28,755.36x = 39,682.12 × 16,179.84
  4. Step 4: Simplify right side
    28,755.36x = 642,050,352.46
  5. Step 5: Solve for x
    x = 642,050,352.46/28,755.36
  6. Step 6: Final answer
    x = 22,328.02

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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.