Home / 47,188.44-70,783.34-12,128.13

Finding the Fourth Proportional to 47,188.44, 70,783.34 and 12,128.13

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Solution

The fourth proportional to 47,188.44, 70,783.34 and 12,128.13 is: 18,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,188.44 : 70,783.34 = 12,128.13 : x
  2. Step 2: Convert to fraction form
    47,188.44/70,783.34 = 12,128.13/x
  3. Step 3: Cross multiply
    47,188.44x = 70,783.34 × 12,128.13
  4. Step 4: Simplify right side
    47,188.44x = 858,469,488.71
  5. Step 5: Solve for x
    x = 858,469,488.71/47,188.44
  6. Step 6: Final answer
    x = 18,192.37

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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.