Home / 25,662.20-38,532.90-13,998.20

Finding the Fourth Proportional to 25,662.20, 38,532.90 and 13,998.20

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Solution

The fourth proportional to 25,662.20, 38,532.90 and 13,998.20 is: 21,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,662.20 : 38,532.90 = 13,998.20 : x
  2. Step 2: Convert to fraction form
    25,662.20/38,532.90 = 13,998.20/x
  3. Step 3: Cross multiply
    25,662.20x = 38,532.90 × 13,998.20
  4. Step 4: Simplify right side
    25,662.20x = 539,391,240.78
  5. Step 5: Solve for x
    x = 539,391,240.78/25,662.20
  6. Step 6: Final answer
    x = 21,018.90

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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.