Home / 21,366.20-29,484.87-11,934.74

Finding the Fourth Proportional to 21,366.20, 29,484.87 and 11,934.74

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Solution

The fourth proportional to 21,366.20, 29,484.87 and 11,934.74 is: 16,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.20 : 29,484.87 = 11,934.74 : x
  2. Step 2: Convert to fraction form
    21,366.20/29,484.87 = 11,934.74/x
  3. Step 3: Cross multiply
    21,366.20x = 29,484.87 × 11,934.74
  4. Step 4: Simplify right side
    21,366.20x = 351,894,257.38
  5. Step 5: Solve for x
    x = 351,894,257.38/21,366.20
  6. Step 6: Final answer
    x = 16,469.67

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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.