Home / 21,053.30-29,054.66-12,103.82

Finding the Fourth Proportional to 21,053.30, 29,054.66 and 12,103.82

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Solution

The fourth proportional to 21,053.30, 29,054.66 and 12,103.82 is: 16,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.30 : 29,054.66 = 12,103.82 : x
  2. Step 2: Convert to fraction form
    21,053.30/29,054.66 = 12,103.82/x
  3. Step 3: Cross multiply
    21,053.30x = 29,054.66 × 12,103.82
  4. Step 4: Simplify right side
    21,053.30x = 351,672,169.01
  5. Step 5: Solve for x
    x = 351,672,169.01/21,053.30
  6. Step 6: Final answer
    x = 16,703.90

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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.