Home / 31,450.81-47,176.21-8,077.27

Finding the Fourth Proportional to 31,450.81, 47,176.21 and 8,077.27

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Solution

The fourth proportional to 31,450.81, 47,176.21 and 8,077.27 is: 12,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.81 : 47,176.21 = 8,077.27 : x
  2. Step 2: Convert to fraction form
    31,450.81/47,176.21 = 8,077.27/x
  3. Step 3: Cross multiply
    31,450.81x = 47,176.21 × 8,077.27
  4. Step 4: Simplify right side
    31,450.81x = 381,054,877.90
  5. Step 5: Solve for x
    x = 381,054,877.90/31,450.81
  6. Step 6: Final answer
    x = 12,115.90

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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.