Home / 25,211.88-37,841.18-12,740.72

Finding the Fourth Proportional to 25,211.88, 37,841.18 and 12,740.72

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Solution

The fourth proportional to 25,211.88, 37,841.18 and 12,740.72 is: 19,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,211.88 : 37,841.18 = 12,740.72 : x
  2. Step 2: Convert to fraction form
    25,211.88/37,841.18 = 12,740.72/x
  3. Step 3: Cross multiply
    25,211.88x = 37,841.18 × 12,740.72
  4. Step 4: Simplify right side
    25,211.88x = 482,123,625.94
  5. Step 5: Solve for x
    x = 482,123,625.94/25,211.88
  6. Step 6: Final answer
    x = 19,122.87

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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.