Home / 25,478.84-38,219.24-12,144.96

Finding the Fourth Proportional to 25,478.84, 38,219.24 and 12,144.96

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Solution

The fourth proportional to 25,478.84, 38,219.24 and 12,144.96 is: 18,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.84 : 38,219.24 = 12,144.96 : x
  2. Step 2: Convert to fraction form
    25,478.84/38,219.24 = 12,144.96/x
  3. Step 3: Cross multiply
    25,478.84x = 38,219.24 × 12,144.96
  4. Step 4: Simplify right side
    25,478.84x = 464,171,141.03
  5. Step 5: Solve for x
    x = 464,171,141.03/25,478.84
  6. Step 6: Final answer
    x = 18,217.91

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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.