Home / 30,068.84-41,495.22-18,129.80

Finding the Fourth Proportional to 30,068.84, 41,495.22 and 18,129.80

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Solution

The fourth proportional to 30,068.84, 41,495.22 and 18,129.80 is: 25,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.84 : 41,495.22 = 18,129.80 : x
  2. Step 2: Convert to fraction form
    30,068.84/41,495.22 = 18,129.80/x
  3. Step 3: Cross multiply
    30,068.84x = 41,495.22 × 18,129.80
  4. Step 4: Simplify right side
    30,068.84x = 752,300,039.56
  5. Step 5: Solve for x
    x = 752,300,039.56/30,068.84
  6. Step 6: Final answer
    x = 25,019.26

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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.