Home / 25,379.86-38,113.35-15,576.70

Finding the Fourth Proportional to 25,379.86, 38,113.35 and 15,576.70

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Solution

The fourth proportional to 25,379.86, 38,113.35 and 15,576.70 is: 23,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.86 : 38,113.35 = 15,576.70 : x
  2. Step 2: Convert to fraction form
    25,379.86/38,113.35 = 15,576.70/x
  3. Step 3: Cross multiply
    25,379.86x = 38,113.35 × 15,576.70
  4. Step 4: Simplify right side
    25,379.86x = 593,680,218.95
  5. Step 5: Solve for x
    x = 593,680,218.95/25,379.86
  6. Step 6: Final answer
    x = 23,391.78

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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.