Home / 21,343.10-29,447.96-14,630.83

Finding the Fourth Proportional to 21,343.10, 29,447.96 and 14,630.83

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Solution

The fourth proportional to 21,343.10, 29,447.96 and 14,630.83 is: 20,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.10 : 29,447.96 = 14,630.83 : x
  2. Step 2: Convert to fraction form
    21,343.10/29,447.96 = 14,630.83/x
  3. Step 3: Cross multiply
    21,343.10x = 29,447.96 × 14,630.83
  4. Step 4: Simplify right side
    21,343.10x = 430,847,949.83
  5. Step 5: Solve for x
    x = 430,847,949.83/21,343.10
  6. Step 6: Final answer
    x = 20,186.76

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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.