Home / 27,817.88-38,388.69-15,242.63

Finding the Fourth Proportional to 27,817.88, 38,388.69 and 15,242.63

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Solution

The fourth proportional to 27,817.88, 38,388.69 and 15,242.63 is: 21,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.88 : 38,388.69 = 15,242.63 : x
  2. Step 2: Convert to fraction form
    27,817.88/38,388.69 = 15,242.63/x
  3. Step 3: Cross multiply
    27,817.88x = 38,388.69 × 15,242.63
  4. Step 4: Simplify right side
    27,817.88x = 585,144,405.91
  5. Step 5: Solve for x
    x = 585,144,405.91/27,817.88
  6. Step 6: Final answer
    x = 21,034.83

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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.