Home / 21,245.22-29,320.65-11,814.66

Finding the Fourth Proportional to 21,245.22, 29,320.65 and 11,814.66

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Solution

The fourth proportional to 21,245.22, 29,320.65 and 11,814.66 is: 16,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.22 : 29,320.65 = 11,814.66 : x
  2. Step 2: Convert to fraction form
    21,245.22/29,320.65 = 11,814.66/x
  3. Step 3: Cross multiply
    21,245.22x = 29,320.65 × 11,814.66
  4. Step 4: Simplify right side
    21,245.22x = 346,413,510.73
  5. Step 5: Solve for x
    x = 346,413,510.73/21,245.22
  6. Step 6: Final answer
    x = 16,305.48

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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.