Home / 27,661.92-38,172.30-15,086.67

Finding the Fourth Proportional to 27,661.92, 38,172.30 and 15,086.67

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Solution

The fourth proportional to 27,661.92, 38,172.30 and 15,086.67 is: 20,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.92 : 38,172.30 = 15,086.67 : x
  2. Step 2: Convert to fraction form
    27,661.92/38,172.30 = 15,086.67/x
  3. Step 3: Cross multiply
    27,661.92x = 38,172.30 × 15,086.67
  4. Step 4: Simplify right side
    27,661.92x = 575,892,893.24
  5. Step 5: Solve for x
    x = 575,892,893.24/27,661.92
  6. Step 6: Final answer
    x = 20,818.98

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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.