Home / 30,960.56-42,725.19-16,813.50

Finding the Fourth Proportional to 30,960.56, 42,725.19 and 16,813.50

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Solution

The fourth proportional to 30,960.56, 42,725.19 and 16,813.50 is: 23,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.56 : 42,725.19 = 16,813.50 : x
  2. Step 2: Convert to fraction form
    30,960.56/42,725.19 = 16,813.50/x
  3. Step 3: Cross multiply
    30,960.56x = 42,725.19 × 16,813.50
  4. Step 4: Simplify right side
    30,960.56x = 718,359,982.07
  5. Step 5: Solve for x
    x = 718,359,982.07/30,960.56
  6. Step 6: Final answer
    x = 23,202.43

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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.