Home / 30,428.46-41,991.62-16,818.18

Finding the Fourth Proportional to 30,428.46, 41,991.62 and 16,818.18

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Solution

The fourth proportional to 30,428.46, 41,991.62 and 16,818.18 is: 23,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.46 : 41,991.62 = 16,818.18 : x
  2. Step 2: Convert to fraction form
    30,428.46/41,991.62 = 16,818.18/x
  3. Step 3: Cross multiply
    30,428.46x = 41,991.62 × 16,818.18
  4. Step 4: Simplify right side
    30,428.46x = 706,222,618.29
  5. Step 5: Solve for x
    x = 706,222,618.29/30,428.46
  6. Step 6: Final answer
    x = 23,209.28

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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.