Home / 21,496.32-29,665.44-12,065.76

Finding the Fourth Proportional to 21,496.32, 29,665.44 and 12,065.76

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Solution

The fourth proportional to 21,496.32, 29,665.44 and 12,065.76 is: 16,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,496.32 : 29,665.44 = 12,065.76 : x
  2. Step 2: Convert to fraction form
    21,496.32/29,665.44 = 12,065.76/x
  3. Step 3: Cross multiply
    21,496.32x = 29,665.44 × 12,065.76
  4. Step 4: Simplify right side
    21,496.32x = 357,936,079.33
  5. Step 5: Solve for x
    x = 357,936,079.33/21,496.32
  6. Step 6: Final answer
    x = 16,651.04

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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.