Home / 28,297.96-39,056.58-18,738.04

Finding the Fourth Proportional to 28,297.96, 39,056.58 and 18,738.04

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Solution

The fourth proportional to 28,297.96, 39,056.58 and 18,738.04 is: 25,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.96 : 39,056.58 = 18,738.04 : x
  2. Step 2: Convert to fraction form
    28,297.96/39,056.58 = 18,738.04/x
  3. Step 3: Cross multiply
    28,297.96x = 39,056.58 × 18,738.04
  4. Step 4: Simplify right side
    28,297.96x = 731,843,758.30
  5. Step 5: Solve for x
    x = 731,843,758.30/28,297.96
  6. Step 6: Final answer
    x = 25,862.07

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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.