Home / 20,068.43-30,100.24-5,278.50

Finding the Fourth Proportional to 20,068.43, 30,100.24 and 5,278.50

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Solution

The fourth proportional to 20,068.43, 30,100.24 and 5,278.50 is: 7,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.43 : 30,100.24 = 5,278.50 : x
  2. Step 2: Convert to fraction form
    20,068.43/30,100.24 = 5,278.50/x
  3. Step 3: Cross multiply
    20,068.43x = 30,100.24 × 5,278.50
  4. Step 4: Simplify right side
    20,068.43x = 158,884,116.84
  5. Step 5: Solve for x
    x = 158,884,116.84/20,068.43
  6. Step 6: Final answer
    x = 7,917.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.