Home / 28,121.36-38,759.56-25,737.88

Finding the Fourth Proportional to 28,121.36, 38,759.56 and 25,737.88

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Solution

The fourth proportional to 28,121.36, 38,759.56 and 25,737.88 is: 35,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.36 : 38,759.56 = 25,737.88 : x
  2. Step 2: Convert to fraction form
    28,121.36/38,759.56 = 25,737.88/x
  3. Step 3: Cross multiply
    28,121.36x = 38,759.56 × 25,737.88
  4. Step 4: Simplify right side
    28,121.36x = 997,588,904.13
  5. Step 5: Solve for x
    x = 997,588,904.13/28,121.36
  6. Step 6: Final answer
    x = 35,474.42

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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.