Home / 28,878.15-39,850.64-16,131.27

Finding the Fourth Proportional to 28,878.15, 39,850.64 and 16,131.27

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Solution

The fourth proportional to 28,878.15, 39,850.64 and 16,131.27 is: 22,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.15 : 39,850.64 = 16,131.27 : x
  2. Step 2: Convert to fraction form
    28,878.15/39,850.64 = 16,131.27/x
  3. Step 3: Cross multiply
    28,878.15x = 39,850.64 × 16,131.27
  4. Step 4: Simplify right side
    28,878.15x = 642,841,433.51
  5. Step 5: Solve for x
    x = 642,841,433.51/28,878.15
  6. Step 6: Final answer
    x = 22,260.48

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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.