Home / 27,762.24-38,287.67-19,679.91

Finding the Fourth Proportional to 27,762.24, 38,287.67 and 19,679.91

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Solution

The fourth proportional to 27,762.24, 38,287.67 and 19,679.91 is: 27,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.24 : 38,287.67 = 19,679.91 : x
  2. Step 2: Convert to fraction form
    27,762.24/38,287.67 = 19,679.91/x
  3. Step 3: Cross multiply
    27,762.24x = 38,287.67 × 19,679.91
  4. Step 4: Simplify right side
    27,762.24x = 753,497,708.27
  5. Step 5: Solve for x
    x = 753,497,708.27/27,762.24
  6. Step 6: Final answer
    x = 27,141.10

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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.