Home / 21,135.46-29,100.54-17,942.13

Finding the Fourth Proportional to 21,135.46, 29,100.54 and 17,942.13

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Solution

The fourth proportional to 21,135.46, 29,100.54 and 17,942.13 is: 24,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135.46 : 29,100.54 = 17,942.13 : x
  2. Step 2: Convert to fraction form
    21,135.46/29,100.54 = 17,942.13/x
  3. Step 3: Cross multiply
    21,135.46x = 29,100.54 × 17,942.13
  4. Step 4: Simplify right side
    21,135.46x = 522,125,770.42
  5. Step 5: Solve for x
    x = 522,125,770.42/21,135.46
  6. Step 6: Final answer
    x = 24,703.78

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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.