Home / 28,218.53-38,941.58-15,297.85

Finding the Fourth Proportional to 28,218.53, 38,941.58 and 15,297.85

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Solution

The fourth proportional to 28,218.53, 38,941.58 and 15,297.85 is: 21,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.53 : 38,941.58 = 15,297.85 : x
  2. Step 2: Convert to fraction form
    28,218.53/38,941.58 = 15,297.85/x
  3. Step 3: Cross multiply
    28,218.53x = 38,941.58 × 15,297.85
  4. Step 4: Simplify right side
    28,218.53x = 595,722,450.47
  5. Step 5: Solve for x
    x = 595,722,450.47/28,218.53
  6. Step 6: Final answer
    x = 21,111.04

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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.