Home / 30,945.44-42,707.39-17,519.09

Finding the Fourth Proportional to 30,945.44, 42,707.39 and 17,519.09

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Solution

The fourth proportional to 30,945.44, 42,707.39 and 17,519.09 is: 24,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.44 : 42,707.39 = 17,519.09 : x
  2. Step 2: Convert to fraction form
    30,945.44/42,707.39 = 17,519.09/x
  3. Step 3: Cross multiply
    30,945.44x = 42,707.39 × 17,519.09
  4. Step 4: Simplify right side
    30,945.44x = 748,194,307.94
  5. Step 5: Solve for x
    x = 748,194,307.94/30,945.44
  6. Step 6: Final answer
    x = 24,177.85

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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.