Home / 30,608.40-42,239.61-17,180.94

Finding the Fourth Proportional to 30,608.40, 42,239.61 and 17,180.94

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Solution

The fourth proportional to 30,608.40, 42,239.61 and 17,180.94 is: 23,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.40 : 42,239.61 = 17,180.94 : x
  2. Step 2: Convert to fraction form
    30,608.40/42,239.61 = 17,180.94/x
  3. Step 3: Cross multiply
    30,608.40x = 42,239.61 × 17,180.94
  4. Step 4: Simplify right side
    30,608.40x = 725,716,205.03
  5. Step 5: Solve for x
    x = 725,716,205.03/30,608.40
  6. Step 6: Final answer
    x = 23,709.71

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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.