Home / 28,129.22-38,824.77-16,199.42

Finding the Fourth Proportional to 28,129.22, 38,824.77 and 16,199.42

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Solution

The fourth proportional to 28,129.22, 38,824.77 and 16,199.42 is: 22,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.22 : 38,824.77 = 16,199.42 : x
  2. Step 2: Convert to fraction form
    28,129.22/38,824.77 = 16,199.42/x
  3. Step 3: Cross multiply
    28,129.22x = 38,824.77 × 16,199.42
  4. Step 4: Simplify right side
    28,129.22x = 628,938,755.63
  5. Step 5: Solve for x
    x = 628,938,755.63/28,129.22
  6. Step 6: Final answer
    x = 22,358.91

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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.