Home / 21,313.48-29,410.53-12,361.57

Finding the Fourth Proportional to 21,313.48, 29,410.53 and 12,361.57

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Solution

The fourth proportional to 21,313.48, 29,410.53 and 12,361.57 is: 17,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.48 : 29,410.53 = 12,361.57 : x
  2. Step 2: Convert to fraction form
    21,313.48/29,410.53 = 12,361.57/x
  3. Step 3: Cross multiply
    21,313.48x = 29,410.53 × 12,361.57
  4. Step 4: Simplify right side
    21,313.48x = 363,560,325.33
  5. Step 5: Solve for x
    x = 363,560,325.33/21,313.48
  6. Step 6: Final answer
    x = 17,057.76

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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.