Home / 21,164.22-29,205.10-11,602.58

Finding the Fourth Proportional to 21,164.22, 29,205.10 and 11,602.58

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Solution

The fourth proportional to 21,164.22, 29,205.10 and 11,602.58 is: 16,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.22 : 29,205.10 = 11,602.58 : x
  2. Step 2: Convert to fraction form
    21,164.22/29,205.10 = 11,602.58/x
  3. Step 3: Cross multiply
    21,164.22x = 29,205.10 × 11,602.58
  4. Step 4: Simplify right side
    21,164.22x = 338,854,509.16
  5. Step 5: Solve for x
    x = 338,854,509.16/21,164.22
  6. Step 6: Final answer
    x = 16,010.73

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Half scale
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Double scale
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Similar ratio
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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.