Home / 47,239.56-70,863.42-12,178.92

Finding the Fourth Proportional to 47,239.56, 70,863.42 and 12,178.92

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Solution

The fourth proportional to 47,239.56, 70,863.42 and 12,178.92 is: 18,269.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,239.56 : 70,863.42 = 12,178.92 : x
  2. Step 2: Convert to fraction form
    47,239.56/70,863.42 = 12,178.92/x
  3. Step 3: Cross multiply
    47,239.56x = 70,863.42 × 12,178.92
  4. Step 4: Simplify right side
    47,239.56x = 863,039,923.11
  5. Step 5: Solve for x
    x = 863,039,923.11/47,239.56
  6. Step 6: Final answer
    x = 18,269.43

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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.