Home / 28,138.59-38,829.96-16,199.37

Finding the Fourth Proportional to 28,138.59, 38,829.96 and 16,199.37

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Solution

The fourth proportional to 28,138.59, 38,829.96 and 16,199.37 is: 22,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138.59 : 38,829.96 = 16,199.37 : x
  2. Step 2: Convert to fraction form
    28,138.59/38,829.96 = 16,199.37/x
  3. Step 3: Cross multiply
    28,138.59x = 38,829.96 × 16,199.37
  4. Step 4: Simplify right side
    28,138.59x = 629,020,889.13
  5. Step 5: Solve for x
    x = 629,020,889.13/28,138.59
  6. Step 6: Final answer
    x = 22,354.39

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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.