Home / 26,624.18-39,929.42-7,899.78

Finding the Fourth Proportional to 26,624.18, 39,929.42 and 7,899.78

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Solution

The fourth proportional to 26,624.18, 39,929.42 and 7,899.78 is: 11,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,624.18 : 39,929.42 = 7,899.78 : x
  2. Step 2: Convert to fraction form
    26,624.18/39,929.42 = 7,899.78/x
  3. Step 3: Cross multiply
    26,624.18x = 39,929.42 × 7,899.78
  4. Step 4: Simplify right side
    26,624.18x = 315,433,653.28
  5. Step 5: Solve for x
    x = 315,433,653.28/26,624.18
  6. Step 6: Final answer
    x = 11,847.64

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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.