Home / 27,655.28-41,470.72-7,929.36

Finding the Fourth Proportional to 27,655.28, 41,470.72 and 7,929.36

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Solution

The fourth proportional to 27,655.28, 41,470.72 and 7,929.36 is: 11,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,655.28 : 41,470.72 = 7,929.36 : x
  2. Step 2: Convert to fraction form
    27,655.28/41,470.72 = 7,929.36/x
  3. Step 3: Cross multiply
    27,655.28x = 41,470.72 × 7,929.36
  4. Step 4: Simplify right side
    27,655.28x = 328,836,268.34
  5. Step 5: Solve for x
    x = 328,836,268.34/27,655.28
  6. Step 6: Final answer
    x = 11,890.54

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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.