Home / 21,053.37-29,053.44-12,103.68

Finding the Fourth Proportional to 21,053.37, 29,053.44 and 12,103.68

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Solution

The fourth proportional to 21,053.37, 29,053.44 and 12,103.68 is: 16,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.37 : 29,053.44 = 12,103.68 : x
  2. Step 2: Convert to fraction form
    21,053.37/29,053.44 = 12,103.68/x
  3. Step 3: Cross multiply
    21,053.37x = 29,053.44 × 12,103.68
  4. Step 4: Simplify right side
    21,053.37x = 351,653,540.66
  5. Step 5: Solve for x
    x = 351,653,540.66/21,053.37
  6. Step 6: Final answer
    x = 16,702.96

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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.