Home / 19,268.72-28,919.52-7,590.16

Finding the Fourth Proportional to 19,268.72, 28,919.52 and 7,590.16

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Solution

The fourth proportional to 19,268.72, 28,919.52 and 7,590.16 is: 11,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.72 : 28,919.52 = 7,590.16 : x
  2. Step 2: Convert to fraction form
    19,268.72/28,919.52 = 7,590.16/x
  3. Step 3: Cross multiply
    19,268.72x = 28,919.52 × 7,590.16
  4. Step 4: Simplify right side
    19,268.72x = 219,503,783.92
  5. Step 5: Solve for x
    x = 219,503,783.92/19,268.72
  6. Step 6: Final answer
    x = 11,391.72

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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.