Home / 21,199.70-29,254.38-11,767.70

Finding the Fourth Proportional to 21,199.70, 29,254.38 and 11,767.70

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Solution

The fourth proportional to 21,199.70, 29,254.38 and 11,767.70 is: 16,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.70 : 29,254.38 = 11,767.70 : x
  2. Step 2: Convert to fraction form
    21,199.70/29,254.38 = 11,767.70/x
  3. Step 3: Cross multiply
    21,199.70x = 29,254.38 × 11,767.70
  4. Step 4: Simplify right side
    21,199.70x = 344,256,767.53
  5. Step 5: Solve for x
    x = 344,256,767.53/21,199.70
  6. Step 6: Final answer
    x = 16,238.76

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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.