Home / 30,379.08-41,922.18-17,812.20

Finding the Fourth Proportional to 30,379.08, 41,922.18 and 17,812.20

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Solution

The fourth proportional to 30,379.08, 41,922.18 and 17,812.20 is: 24,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.08 : 41,922.18 = 17,812.20 : x
  2. Step 2: Convert to fraction form
    30,379.08/41,922.18 = 17,812.20/x
  3. Step 3: Cross multiply
    30,379.08x = 41,922.18 × 17,812.20
  4. Step 4: Simplify right side
    30,379.08x = 746,726,254.60
  5. Step 5: Solve for x
    x = 746,726,254.60/30,379.08
  6. Step 6: Final answer
    x = 24,580.28

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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.