Home / 27,751.62-38,297.16-15,814.98

Finding the Fourth Proportional to 27,751.62, 38,297.16 and 15,814.98

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Solution

The fourth proportional to 27,751.62, 38,297.16 and 15,814.98 is: 21,824.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,751.62 : 38,297.16 = 15,814.98 : x
  2. Step 2: Convert to fraction form
    27,751.62/38,297.16 = 15,814.98/x
  3. Step 3: Cross multiply
    27,751.62x = 38,297.16 × 15,814.98
  4. Step 4: Simplify right side
    27,751.62x = 605,668,819.46
  5. Step 5: Solve for x
    x = 605,668,819.46/27,751.62
  6. Step 6: Final answer
    x = 21,824.63

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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.