Home / 19,255.74-28,881.42-5,214.96

Finding the Fourth Proportional to 19,255.74, 28,881.42 and 5,214.96

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Solution

The fourth proportional to 19,255.74, 28,881.42 and 5,214.96 is: 7,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.74 : 28,881.42 = 5,214.96 : x
  2. Step 2: Convert to fraction form
    19,255.74/28,881.42 = 5,214.96/x
  3. Step 3: Cross multiply
    19,255.74x = 28,881.42 × 5,214.96
  4. Step 4: Simplify right side
    19,255.74x = 150,615,450.04
  5. Step 5: Solve for x
    x = 150,615,450.04/19,255.74
  6. Step 6: Final answer
    x = 7,821.85

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1.5x scale

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.