Home / 31,474.20-47,227.72-12,768.06

Finding the Fourth Proportional to 31,474.20, 47,227.72 and 12,768.06

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Solution

The fourth proportional to 31,474.20, 47,227.72 and 12,768.06 is: 19,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474.20 : 47,227.72 = 12,768.06 : x
  2. Step 2: Convert to fraction form
    31,474.20/47,227.72 = 12,768.06/x
  3. Step 3: Cross multiply
    31,474.20x = 47,227.72 × 12,768.06
  4. Step 4: Simplify right side
    31,474.20x = 603,006,362.62
  5. Step 5: Solve for x
    x = 603,006,362.62/31,474.20
  6. Step 6: Final answer
    x = 19,158.75

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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.