Home / 21,716.93-32,580.17-12,361.35

Finding the Fourth Proportional to 21,716.93, 32,580.17 and 12,361.35

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Solution

The fourth proportional to 21,716.93, 32,580.17 and 12,361.35 is: 18,544.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716.93 : 32,580.17 = 12,361.35 : x
  2. Step 2: Convert to fraction form
    21,716.93/32,580.17 = 12,361.35/x
  3. Step 3: Cross multiply
    21,716.93x = 32,580.17 × 12,361.35
  4. Step 4: Simplify right side
    21,716.93x = 402,734,822.62
  5. Step 5: Solve for x
    x = 402,734,822.62/21,716.93
  6. Step 6: Final answer
    x = 18,544.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.