Home / 19,902.25-27,455.91-11,930.63

Finding the Fourth Proportional to 19,902.25, 27,455.91 and 11,930.63

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Solution

The fourth proportional to 19,902.25, 27,455.91 and 11,930.63 is: 16,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.25 : 27,455.91 = 11,930.63 : x
  2. Step 2: Convert to fraction form
    19,902.25/27,455.91 = 11,930.63/x
  3. Step 3: Cross multiply
    19,902.25x = 27,455.91 × 11,930.63
  4. Step 4: Simplify right side
    19,902.25x = 327,566,303.52
  5. Step 5: Solve for x
    x = 327,566,303.52/19,902.25
  6. Step 6: Final answer
    x = 16,458.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.