Home / 25,292.10-37,961.10-12,820.80

Finding the Fourth Proportional to 25,292.10, 37,961.10 and 12,820.80

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Solution

The fourth proportional to 25,292.10, 37,961.10 and 12,820.80 is: 19,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,292.10 : 37,961.10 = 12,820.80 : x
  2. Step 2: Convert to fraction form
    25,292.10/37,961.10 = 12,820.80/x
  3. Step 3: Cross multiply
    25,292.10x = 37,961.10 × 12,820.80
  4. Step 4: Simplify right side
    25,292.10x = 486,691,670.88
  5. Step 5: Solve for x
    x = 486,691,670.88/25,292.10
  6. Step 6: Final answer
    x = 19,242.83

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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.