Home / 28,137.46-42,187.43-15,493.17

Finding the Fourth Proportional to 28,137.46, 42,187.43 and 15,493.17

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Solution

The fourth proportional to 28,137.46, 42,187.43 and 15,493.17 is: 23,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.46 : 42,187.43 = 15,493.17 : x
  2. Step 2: Convert to fraction form
    28,137.46/42,187.43 = 15,493.17/x
  3. Step 3: Cross multiply
    28,137.46x = 42,187.43 × 15,493.17
  4. Step 4: Simplify right side
    28,137.46x = 653,616,915.65
  5. Step 5: Solve for x
    x = 653,616,915.65/28,137.46
  6. Step 6: Final answer
    x = 23,229.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.