Home / 27,478.36-41,218.26-7,759

Finding the Fourth Proportional to 27,478.36, 41,218.26 and 7,759

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Solution

The fourth proportional to 27,478.36, 41,218.26 and 7,759 is: 11,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.36 : 41,218.26 = 7,759 : x
  2. Step 2: Convert to fraction form
    27,478.36/41,218.26 = 7,759/x
  3. Step 3: Cross multiply
    27,478.36x = 41,218.26 × 7,759
  4. Step 4: Simplify right side
    27,478.36x = 319,812,479.34
  5. Step 5: Solve for x
    x = 319,812,479.34/27,478.36
  6. Step 6: Final answer
    x = 11,638.70

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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.