Home / 27,820.56-38,393.04-15,246

Finding the Fourth Proportional to 27,820.56, 38,393.04 and 15,246

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Solution

The fourth proportional to 27,820.56, 38,393.04 and 15,246 is: 21,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.56 : 38,393.04 = 15,246 : x
  2. Step 2: Convert to fraction form
    27,820.56/38,393.04 = 15,246/x
  3. Step 3: Cross multiply
    27,820.56x = 38,393.04 × 15,246
  4. Step 4: Simplify right side
    27,820.56x = 585,340,287.84
  5. Step 5: Solve for x
    x = 585,340,287.84/27,820.56
  6. Step 6: Final answer
    x = 21,039.85

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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.