Home / 30,135.80-41,578.96-17,558.12

Finding the Fourth Proportional to 30,135.80, 41,578.96 and 17,558.12

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Solution

The fourth proportional to 30,135.80, 41,578.96 and 17,558.12 is: 24,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.80 : 41,578.96 = 17,558.12 : x
  2. Step 2: Convert to fraction form
    30,135.80/41,578.96 = 17,558.12/x
  3. Step 3: Cross multiply
    30,135.80x = 41,578.96 × 17,558.12
  4. Step 4: Simplify right side
    30,135.80x = 730,048,369.16
  5. Step 5: Solve for x
    x = 730,048,369.16/30,135.80
  6. Step 6: Final answer
    x = 24,225.29

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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.