Home / 28,071.62-38,737.41-15,493.94

Finding the Fourth Proportional to 28,071.62, 38,737.41 and 15,493.94

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Solution

The fourth proportional to 28,071.62, 38,737.41 and 15,493.94 is: 21,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.62 : 38,737.41 = 15,493.94 : x
  2. Step 2: Convert to fraction form
    28,071.62/38,737.41 = 15,493.94/x
  3. Step 3: Cross multiply
    28,071.62x = 38,737.41 × 15,493.94
  4. Step 4: Simplify right side
    28,071.62x = 600,195,106.30
  5. Step 5: Solve for x
    x = 600,195,106.30/28,071.62
  6. Step 6: Final answer
    x = 21,380.85

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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.