Home / 18,890.16-28,334.52-5,039.04

Finding the Fourth Proportional to 18,890.16, 28,334.52 and 5,039.04

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Solution

The fourth proportional to 18,890.16, 28,334.52 and 5,039.04 is: 7,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.16 : 28,334.52 = 5,039.04 : x
  2. Step 2: Convert to fraction form
    18,890.16/28,334.52 = 5,039.04/x
  3. Step 3: Cross multiply
    18,890.16x = 28,334.52 × 5,039.04
  4. Step 4: Simplify right side
    18,890.16x = 142,778,779.66
  5. Step 5: Solve for x
    x = 142,778,779.66/18,890.16
  6. Step 6: Final answer
    x = 7,558.37

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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.