Home / 25,464.70-38,172.45-8,812.21

Finding the Fourth Proportional to 25,464.70, 38,172.45 and 8,812.21

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Solution

The fourth proportional to 25,464.70, 38,172.45 and 8,812.21 is: 13,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,464.70 : 38,172.45 = 8,812.21 : x
  2. Step 2: Convert to fraction form
    25,464.70/38,172.45 = 8,812.21/x
  3. Step 3: Cross multiply
    25,464.70x = 38,172.45 × 8,812.21
  4. Step 4: Simplify right side
    25,464.70x = 336,383,645.61
  5. Step 5: Solve for x
    x = 336,383,645.61/25,464.70
  6. Step 6: Final answer
    x = 13,209.80

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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.