Home / 25,622.50-38,439.43-7,855.62

Finding the Fourth Proportional to 25,622.50, 38,439.43 and 7,855.62

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Solution

The fourth proportional to 25,622.50, 38,439.43 and 7,855.62 is: 11,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,622.50 : 38,439.43 = 7,855.62 : x
  2. Step 2: Convert to fraction form
    25,622.50/38,439.43 = 7,855.62/x
  3. Step 3: Cross multiply
    25,622.50x = 38,439.43 × 7,855.62
  4. Step 4: Simplify right side
    25,622.50x = 301,965,555.10
  5. Step 5: Solve for x
    x = 301,965,555.10/25,622.50
  6. Step 6: Final answer
    x = 11,785.17

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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.