Home / 21,408.98-29,572.62-16,434.66

Finding the Fourth Proportional to 21,408.98, 29,572.62 and 16,434.66

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Solution

The fourth proportional to 21,408.98, 29,572.62 and 16,434.66 is: 22,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.98 : 29,572.62 = 16,434.66 : x
  2. Step 2: Convert to fraction form
    21,408.98/29,572.62 = 16,434.66/x
  3. Step 3: Cross multiply
    21,408.98x = 29,572.62 × 16,434.66
  4. Step 4: Simplify right side
    21,408.98x = 486,016,096.72
  5. Step 5: Solve for x
    x = 486,016,096.72/21,408.98
  6. Step 6: Final answer
    x = 22,701.51

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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.