Home / 25,475.21-38,220.41-12,158.20

Finding the Fourth Proportional to 25,475.21, 38,220.41 and 12,158.20

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Solution

The fourth proportional to 25,475.21, 38,220.41 and 12,158.20 is: 18,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.21 : 38,220.41 = 12,158.20 : x
  2. Step 2: Convert to fraction form
    25,475.21/38,220.41 = 12,158.20/x
  3. Step 3: Cross multiply
    25,475.21x = 38,220.41 × 12,158.20
  4. Step 4: Simplify right side
    25,475.21x = 464,691,388.86
  5. Step 5: Solve for x
    x = 464,691,388.86/25,475.21
  6. Step 6: Final answer
    x = 18,240.92

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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.