Home / 21,183.80-29,220.96-14,013.92

Finding the Fourth Proportional to 21,183.80, 29,220.96 and 14,013.92

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Solution

The fourth proportional to 21,183.80, 29,220.96 and 14,013.92 is: 19,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.80 : 29,220.96 = 14,013.92 : x
  2. Step 2: Convert to fraction form
    21,183.80/29,220.96 = 14,013.92/x
  3. Step 3: Cross multiply
    21,183.80x = 29,220.96 × 14,013.92
  4. Step 4: Simplify right side
    21,183.80x = 409,500,195.76
  5. Step 5: Solve for x
    x = 409,500,195.76/21,183.80
  6. Step 6: Final answer
    x = 19,330.82

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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.