Home / 30,755.43-42,442.79-17,326.98

Finding the Fourth Proportional to 30,755.43, 42,442.79 and 17,326.98

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Solution

The fourth proportional to 30,755.43, 42,442.79 and 17,326.98 is: 23,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,755.43 : 42,442.79 = 17,326.98 : x
  2. Step 2: Convert to fraction form
    30,755.43/42,442.79 = 17,326.98/x
  3. Step 3: Cross multiply
    30,755.43x = 42,442.79 × 17,326.98
  4. Step 4: Simplify right side
    30,755.43x = 735,405,286.84
  5. Step 5: Solve for x
    x = 735,405,286.84/30,755.43
  6. Step 6: Final answer
    x = 23,911.40

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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.