Home / 30,982.75-42,755.88-16,835.65

Finding the Fourth Proportional to 30,982.75, 42,755.88 and 16,835.65

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Solution

The fourth proportional to 30,982.75, 42,755.88 and 16,835.65 is: 23,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.75 : 42,755.88 = 16,835.65 : x
  2. Step 2: Convert to fraction form
    30,982.75/42,755.88 = 16,835.65/x
  3. Step 3: Cross multiply
    30,982.75x = 42,755.88 × 16,835.65
  4. Step 4: Simplify right side
    30,982.75x = 719,823,031.12
  5. Step 5: Solve for x
    x = 719,823,031.12/30,982.75
  6. Step 6: Final answer
    x = 23,233.03

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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.