Home / 28,884.86-39,860.70-16,138.29

Finding the Fourth Proportional to 28,884.86, 39,860.70 and 16,138.29

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Solution

The fourth proportional to 28,884.86, 39,860.70 and 16,138.29 is: 22,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.86 : 39,860.70 = 16,138.29 : x
  2. Step 2: Convert to fraction form
    28,884.86/39,860.70 = 16,138.29/x
  3. Step 3: Cross multiply
    28,884.86x = 39,860.70 × 16,138.29
  4. Step 4: Simplify right side
    28,884.86x = 643,283,536.20
  5. Step 5: Solve for x
    x = 643,283,536.20/28,884.86
  6. Step 6: Final answer
    x = 22,270.61

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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.