Home / 30,982.56-42,756.20-16,835.42

Finding the Fourth Proportional to 30,982.56, 42,756.20 and 16,835.42

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Solution

The fourth proportional to 30,982.56, 42,756.20 and 16,835.42 is: 23,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.56 : 42,756.20 = 16,835.42 : x
  2. Step 2: Convert to fraction form
    30,982.56/42,756.20 = 16,835.42/x
  3. Step 3: Cross multiply
    30,982.56x = 42,756.20 × 16,835.42
  4. Step 4: Simplify right side
    30,982.56x = 719,818,286.65
  5. Step 5: Solve for x
    x = 719,818,286.65/30,982.56
  6. Step 6: Final answer
    x = 23,233.02

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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.