Home / 27,819.56-38,389.38-15,242.12

Finding the Fourth Proportional to 27,819.56, 38,389.38 and 15,242.12

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Solution

The fourth proportional to 27,819.56, 38,389.38 and 15,242.12 is: 21,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.56 : 38,389.38 = 15,242.12 : x
  2. Step 2: Convert to fraction form
    27,819.56/38,389.38 = 15,242.12/x
  3. Step 3: Cross multiply
    27,819.56x = 38,389.38 × 15,242.12
  4. Step 4: Simplify right side
    27,819.56x = 585,135,536.69
  5. Step 5: Solve for x
    x = 585,135,536.69/27,819.56
  6. Step 6: Final answer
    x = 21,033.24

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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.