Home / 30,440.91-42,008.67-17,012.73

Finding the Fourth Proportional to 30,440.91, 42,008.67 and 17,012.73

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Solution

The fourth proportional to 30,440.91, 42,008.67 and 17,012.73 is: 23,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.91 : 42,008.67 = 17,012.73 : x
  2. Step 2: Convert to fraction form
    30,440.91/42,008.67 = 17,012.73/x
  3. Step 3: Cross multiply
    30,440.91x = 42,008.67 × 17,012.73
  4. Step 4: Simplify right side
    30,440.91x = 714,682,160.37
  5. Step 5: Solve for x
    x = 714,682,160.37/30,440.91
  6. Step 6: Final answer
    x = 23,477.69

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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.