Home / 19,470.86-29,169.36-11,556.65

Finding the Fourth Proportional to 19,470.86, 29,169.36 and 11,556.65

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Solution

The fourth proportional to 19,470.86, 29,169.36 and 11,556.65 is: 17,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.86 : 29,169.36 = 11,556.65 : x
  2. Step 2: Convert to fraction form
    19,470.86/29,169.36 = 11,556.65/x
  3. Step 3: Cross multiply
    19,470.86x = 29,169.36 × 11,556.65
  4. Step 4: Simplify right side
    19,470.86x = 337,099,938.40
  5. Step 5: Solve for x
    x = 337,099,938.40/19,470.86
  6. Step 6: Final answer
    x = 17,313.05

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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.