Home / 30,918.43-42,667.44-17,489.41

Finding the Fourth Proportional to 30,918.43, 42,667.44 and 17,489.41

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Solution

The fourth proportional to 30,918.43, 42,667.44 and 17,489.41 is: 24,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.43 : 42,667.44 = 17,489.41 : x
  2. Step 2: Convert to fraction form
    30,918.43/42,667.44 = 17,489.41/x
  3. Step 3: Cross multiply
    30,918.43x = 42,667.44 × 17,489.41
  4. Step 4: Simplify right side
    30,918.43x = 746,228,351.81
  5. Step 5: Solve for x
    x = 746,228,351.81/30,918.43
  6. Step 6: Final answer
    x = 24,135.39

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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.