Home / 18,904.83-28,355.09-5,054.91

Finding the Fourth Proportional to 18,904.83, 28,355.09 and 5,054.91

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Solution

The fourth proportional to 18,904.83, 28,355.09 and 5,054.91 is: 7,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.83 : 28,355.09 = 5,054.91 : x
  2. Step 2: Convert to fraction form
    18,904.83/28,355.09 = 5,054.91/x
  3. Step 3: Cross multiply
    18,904.83x = 28,355.09 × 5,054.91
  4. Step 4: Simplify right side
    18,904.83x = 143,332,402.72
  5. Step 5: Solve for x
    x = 143,332,402.72/18,904.83
  6. Step 6: Final answer
    x = 7,581.79

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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.