Home / 30,450.65-42,022.83-17,022.47

Finding the Fourth Proportional to 30,450.65, 42,022.83 and 17,022.47

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Solution

The fourth proportional to 30,450.65, 42,022.83 and 17,022.47 is: 23,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.65 : 42,022.83 = 17,022.47 : x
  2. Step 2: Convert to fraction form
    30,450.65/42,022.83 = 17,022.47/x
  3. Step 3: Cross multiply
    30,450.65x = 42,022.83 × 17,022.47
  4. Step 4: Simplify right side
    30,450.65x = 715,332,468.05
  5. Step 5: Solve for x
    x = 715,332,468.05/30,450.65
  6. Step 6: Final answer
    x = 23,491.53

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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.