Home / 21,054.38-29,054.98-11,622.88

Finding the Fourth Proportional to 21,054.38, 29,054.98 and 11,622.88

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Solution

The fourth proportional to 21,054.38, 29,054.98 and 11,622.88 is: 16,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.38 : 29,054.98 = 11,622.88 : x
  2. Step 2: Convert to fraction form
    21,054.38/29,054.98 = 11,622.88/x
  3. Step 3: Cross multiply
    21,054.38x = 29,054.98 × 11,622.88
  4. Step 4: Simplify right side
    21,054.38x = 337,702,545.94
  5. Step 5: Solve for x
    x = 337,702,545.94/21,054.38
  6. Step 6: Final answer
    x = 16,039.54

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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.