Home / 28,361.58-39,142.65-16,266.78

Finding the Fourth Proportional to 28,361.58, 39,142.65 and 16,266.78

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Solution

The fourth proportional to 28,361.58, 39,142.65 and 16,266.78 is: 22,450.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.58 : 39,142.65 = 16,266.78 : x
  2. Step 2: Convert to fraction form
    28,361.58/39,142.65 = 16,266.78/x
  3. Step 3: Cross multiply
    28,361.58x = 39,142.65 × 16,266.78
  4. Step 4: Simplify right side
    28,361.58x = 636,724,876.17
  5. Step 5: Solve for x
    x = 636,724,876.17/28,361.58
  6. Step 6: Final answer
    x = 22,450.26

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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.