Home / 27,111.74-40,668.82-11,913.30

Finding the Fourth Proportional to 27,111.74, 40,668.82 and 11,913.30

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Solution

The fourth proportional to 27,111.74, 40,668.82 and 11,913.30 is: 17,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.74 : 40,668.82 = 11,913.30 : x
  2. Step 2: Convert to fraction form
    27,111.74/40,668.82 = 11,913.30/x
  3. Step 3: Cross multiply
    27,111.74x = 40,668.82 × 11,913.30
  4. Step 4: Simplify right side
    27,111.74x = 484,499,823.52
  5. Step 5: Solve for x
    x = 484,499,823.52/27,111.74
  6. Step 6: Final answer
    x = 17,870.48

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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.