Home / 19,220.01-28,827.86-5,181.43

Finding the Fourth Proportional to 19,220.01, 28,827.86 and 5,181.43

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Solution

The fourth proportional to 19,220.01, 28,827.86 and 5,181.43 is: 7,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.01 : 28,827.86 = 5,181.43 : x
  2. Step 2: Convert to fraction form
    19,220.01/28,827.86 = 5,181.43/x
  3. Step 3: Cross multiply
    19,220.01x = 28,827.86 × 5,181.43
  4. Step 4: Simplify right side
    19,220.01x = 149,369,551.59
  5. Step 5: Solve for x
    x = 149,369,551.59/19,220.01
  6. Step 6: Final answer
    x = 7,771.57

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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.