Home / 22,361.35-30,851.91-13,405.58

Finding the Fourth Proportional to 22,361.35, 30,851.91 and 13,405.58

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Solution

The fourth proportional to 22,361.35, 30,851.91 and 13,405.58 is: 18,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.35 : 30,851.91 = 13,405.58 : x
  2. Step 2: Convert to fraction form
    22,361.35/30,851.91 = 13,405.58/x
  3. Step 3: Cross multiply
    22,361.35x = 30,851.91 × 13,405.58
  4. Step 4: Simplify right side
    22,361.35x = 413,587,824.79
  5. Step 5: Solve for x
    x = 413,587,824.79/22,361.35
  6. Step 6: Final answer
    x = 18,495.66

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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.