Home / 30,960.99-42,725.03-16,813.53

Finding the Fourth Proportional to 30,960.99, 42,725.03 and 16,813.53

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Solution

The fourth proportional to 30,960.99, 42,725.03 and 16,813.53 is: 23,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.99 : 42,725.03 = 16,813.53 : x
  2. Step 2: Convert to fraction form
    30,960.99/42,725.03 = 16,813.53/x
  3. Step 3: Cross multiply
    30,960.99x = 42,725.03 × 16,813.53
  4. Step 4: Simplify right side
    30,960.99x = 718,358,489.59
  5. Step 5: Solve for x
    x = 718,358,489.59/30,960.99
  6. Step 6: Final answer
    x = 23,202.05

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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.