Home / 30,549.88-42,146.70-17,954.68

Finding the Fourth Proportional to 30,549.88, 42,146.70 and 17,954.68

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Solution

The fourth proportional to 30,549.88, 42,146.70 and 17,954.68 is: 24,770.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,549.88 : 42,146.70 = 17,954.68 : x
  2. Step 2: Convert to fraction form
    30,549.88/42,146.70 = 17,954.68/x
  3. Step 3: Cross multiply
    30,549.88x = 42,146.70 × 17,954.68
  4. Step 4: Simplify right side
    30,549.88x = 756,730,511.56
  5. Step 5: Solve for x
    x = 756,730,511.56/30,549.88
  6. Step 6: Final answer
    x = 24,770.33

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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.