Home / 28,042.21-38,695.75-16,104.43

Finding the Fourth Proportional to 28,042.21, 38,695.75 and 16,104.43

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Solution

The fourth proportional to 28,042.21, 38,695.75 and 16,104.43 is: 22,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.21 : 38,695.75 = 16,104.43 : x
  2. Step 2: Convert to fraction form
    28,042.21/38,695.75 = 16,104.43/x
  3. Step 3: Cross multiply
    28,042.21x = 38,695.75 × 16,104.43
  4. Step 4: Simplify right side
    28,042.21x = 623,172,997.17
  5. Step 5: Solve for x
    x = 623,172,997.17/28,042.21
  6. Step 6: Final answer
    x = 22,222.68

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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.