Home / 19,670.18-27,142.49-11,169.23

Finding the Fourth Proportional to 19,670.18, 27,142.49 and 11,169.23

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Solution

The fourth proportional to 19,670.18, 27,142.49 and 11,169.23 is: 15,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.18 : 27,142.49 = 11,169.23 : x
  2. Step 2: Convert to fraction form
    19,670.18/27,142.49 = 11,169.23/x
  3. Step 3: Cross multiply
    19,670.18x = 27,142.49 × 11,169.23
  4. Step 4: Simplify right side
    19,670.18x = 303,160,605.79
  5. Step 5: Solve for x
    x = 303,160,605.79/19,670.18
  6. Step 6: Final answer
    x = 15,412.20

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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.