Home / 21,343.29-29,431.74-14,170.62

Finding the Fourth Proportional to 21,343.29, 29,431.74 and 14,170.62

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Solution

The fourth proportional to 21,343.29, 29,431.74 and 14,170.62 is: 19,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.29 : 29,431.74 = 14,170.62 : x
  2. Step 2: Convert to fraction form
    21,343.29/29,431.74 = 14,170.62/x
  3. Step 3: Cross multiply
    21,343.29x = 29,431.74 × 14,170.62
  4. Step 4: Simplify right side
    21,343.29x = 417,066,003.48
  5. Step 5: Solve for x
    x = 417,066,003.48/21,343.29
  6. Step 6: Final answer
    x = 19,540.85

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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.