Home / 27,808.67-38,379.62-15,874.34

Finding the Fourth Proportional to 27,808.67, 38,379.62 and 15,874.34

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Solution

The fourth proportional to 27,808.67, 38,379.62 and 15,874.34 is: 21,908.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.67 : 38,379.62 = 15,874.34 : x
  2. Step 2: Convert to fraction form
    27,808.67/38,379.62 = 15,874.34/x
  3. Step 3: Cross multiply
    27,808.67x = 38,379.62 × 15,874.34
  4. Step 4: Simplify right side
    27,808.67x = 609,250,984.74
  5. Step 5: Solve for x
    x = 609,250,984.74/27,808.67
  6. Step 6: Final answer
    x = 21,908.67

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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.