Home / 21,361.24-29,443.26-14,285.08

Finding the Fourth Proportional to 21,361.24, 29,443.26 and 14,285.08

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Solution

The fourth proportional to 21,361.24, 29,443.26 and 14,285.08 is: 19,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.24 : 29,443.26 = 14,285.08 : x
  2. Step 2: Convert to fraction form
    21,361.24/29,443.26 = 14,285.08/x
  3. Step 3: Cross multiply
    21,361.24x = 29,443.26 × 14,285.08
  4. Step 4: Simplify right side
    21,361.24x = 420,599,324.56
  5. Step 5: Solve for x
    x = 420,599,324.56/21,361.24
  6. Step 6: Final answer
    x = 19,689.84

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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.