Home / 21,375.65-29,498.32-11,944.21

Finding the Fourth Proportional to 21,375.65, 29,498.32 and 11,944.21

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Solution

The fourth proportional to 21,375.65, 29,498.32 and 11,944.21 is: 16,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.65 : 29,498.32 = 11,944.21 : x
  2. Step 2: Convert to fraction form
    21,375.65/29,498.32 = 11,944.21/x
  3. Step 3: Cross multiply
    21,375.65x = 29,498.32 × 11,944.21
  4. Step 4: Simplify right side
    21,375.65x = 352,334,025.12
  5. Step 5: Solve for x
    x = 352,334,025.12/21,375.65
  6. Step 6: Final answer
    x = 16,482.97

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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.