Home / 31,750.40-47,627.58-8,376.86

Finding the Fourth Proportional to 31,750.40, 47,627.58 and 8,376.86

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Solution

The fourth proportional to 31,750.40, 47,627.58 and 8,376.86 is: 12,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.40 : 47,627.58 = 8,376.86 : x
  2. Step 2: Convert to fraction form
    31,750.40/47,627.58 = 8,376.86/x
  3. Step 3: Cross multiply
    31,750.40x = 47,627.58 × 8,376.86
  4. Step 4: Simplify right side
    31,750.40x = 398,969,408.85
  5. Step 5: Solve for x
    x = 398,969,408.85/31,750.40
  6. Step 6: Final answer
    x = 12,565.81

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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.