Home / 21,376.11-29,498.99-11,944.67

Finding the Fourth Proportional to 21,376.11, 29,498.99 and 11,944.67

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Solution

The fourth proportional to 21,376.11, 29,498.99 and 11,944.67 is: 16,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.11 : 29,498.99 = 11,944.67 : x
  2. Step 2: Convert to fraction form
    21,376.11/29,498.99 = 11,944.67/x
  3. Step 3: Cross multiply
    21,376.11x = 29,498.99 × 11,944.67
  4. Step 4: Simplify right side
    21,376.11x = 352,355,714.91
  5. Step 5: Solve for x
    x = 352,355,714.91/21,376.11
  6. Step 6: Final answer
    x = 16,483.62

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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.