Home / 27,704.12-38,212.28-18,747.68

Finding the Fourth Proportional to 27,704.12, 38,212.28 and 18,747.68

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Solution

The fourth proportional to 27,704.12, 38,212.28 and 18,747.68 is: 25,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,704.12 : 38,212.28 = 18,747.68 : x
  2. Step 2: Convert to fraction form
    27,704.12/38,212.28 = 18,747.68/x
  3. Step 3: Cross multiply
    27,704.12x = 38,212.28 × 18,747.68
  4. Step 4: Simplify right side
    27,704.12x = 716,391,597.51
  5. Step 5: Solve for x
    x = 716,391,597.51/27,704.12
  6. Step 6: Final answer
    x = 25,858.67

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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.