Home / 21,361.52-29,478.74-12,414.26

Finding the Fourth Proportional to 21,361.52, 29,478.74 and 12,414.26

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Solution

The fourth proportional to 21,361.52, 29,478.74 and 12,414.26 is: 17,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.52 : 29,478.74 = 12,414.26 : x
  2. Step 2: Convert to fraction form
    21,361.52/29,478.74 = 12,414.26/x
  3. Step 3: Cross multiply
    21,361.52x = 29,478.74 × 12,414.26
  4. Step 4: Simplify right side
    21,361.52x = 365,956,754.46
  5. Step 5: Solve for x
    x = 365,956,754.46/21,361.52
  6. Step 6: Final answer
    x = 17,131.59

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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.