Home / 27,138.13-40,703.19-13,805.63

Finding the Fourth Proportional to 27,138.13, 40,703.19 and 13,805.63

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Solution

The fourth proportional to 27,138.13, 40,703.19 and 13,805.63 is: 20,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.13 : 40,703.19 = 13,805.63 : x
  2. Step 2: Convert to fraction form
    27,138.13/40,703.19 = 13,805.63/x
  3. Step 3: Cross multiply
    27,138.13x = 40,703.19 × 13,805.63
  4. Step 4: Simplify right side
    27,138.13x = 561,933,180.96
  5. Step 5: Solve for x
    x = 561,933,180.96/27,138.13
  6. Step 6: Final answer
    x = 20,706.41

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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.