Home / 30,620.72-42,259.03-17,192.85

Finding the Fourth Proportional to 30,620.72, 42,259.03 and 17,192.85

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Solution

The fourth proportional to 30,620.72, 42,259.03 and 17,192.85 is: 23,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.72 : 42,259.03 = 17,192.85 : x
  2. Step 2: Convert to fraction form
    30,620.72/42,259.03 = 17,192.85/x
  3. Step 3: Cross multiply
    30,620.72x = 42,259.03 × 17,192.85
  4. Step 4: Simplify right side
    30,620.72x = 726,553,163.94
  5. Step 5: Solve for x
    x = 726,553,163.94/30,620.72
  6. Step 6: Final answer
    x = 23,727.50

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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.