Home / 28,297.60-39,051.20-16,361.60

Finding the Fourth Proportional to 28,297.60, 39,051.20 and 16,361.60

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Solution

The fourth proportional to 28,297.60, 39,051.20 and 16,361.60 is: 22,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.60 : 39,051.20 = 16,361.60 : x
  2. Step 2: Convert to fraction form
    28,297.60/39,051.20 = 16,361.60/x
  3. Step 3: Cross multiply
    28,297.60x = 39,051.20 × 16,361.60
  4. Step 4: Simplify right side
    28,297.60x = 638,940,113.92
  5. Step 5: Solve for x
    x = 638,940,113.92/28,297.60
  6. Step 6: Final answer
    x = 22,579.30

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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.