Home / 21,411.05-29,575.47-16,436.73

Finding the Fourth Proportional to 21,411.05, 29,575.47 and 16,436.73

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Solution

The fourth proportional to 21,411.05, 29,575.47 and 16,436.73 is: 22,704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.05 : 29,575.47 = 16,436.73 : x
  2. Step 2: Convert to fraction form
    21,411.05/29,575.47 = 16,436.73/x
  3. Step 3: Cross multiply
    21,411.05x = 29,575.47 × 16,436.73
  4. Step 4: Simplify right side
    21,411.05x = 486,124,015.01
  5. Step 5: Solve for x
    x = 486,124,015.01/21,411.05
  6. Step 6: Final answer
    x = 22,704.36

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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.