Home / 27,405.92-37,820.76-15,469.28

Finding the Fourth Proportional to 27,405.92, 37,820.76 and 15,469.28

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Solution

The fourth proportional to 27,405.92, 37,820.76 and 15,469.28 is: 21,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.92 : 37,820.76 = 15,469.28 : x
  2. Step 2: Convert to fraction form
    27,405.92/37,820.76 = 15,469.28/x
  3. Step 3: Cross multiply
    27,405.92x = 37,820.76 × 15,469.28
  4. Step 4: Simplify right side
    27,405.92x = 585,059,926.25
  5. Step 5: Solve for x
    x = 585,059,926.25/27,405.92
  6. Step 6: Final answer
    x = 21,347.94

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1.5x scale

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.