Home / 27,650.99-38,156.72-15,712.67

Finding the Fourth Proportional to 27,650.99, 38,156.72 and 15,712.67

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Solution

The fourth proportional to 27,650.99, 38,156.72 and 15,712.67 is: 21,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.99 : 38,156.72 = 15,712.67 : x
  2. Step 2: Convert to fraction form
    27,650.99/38,156.72 = 15,712.67/x
  3. Step 3: Cross multiply
    27,650.99x = 38,156.72 × 15,712.67
  4. Step 4: Simplify right side
    27,650.99x = 599,543,949.64
  5. Step 5: Solve for x
    x = 599,543,949.64/27,650.99
  6. Step 6: Final answer
    x = 21,682.55

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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.