Home / 47,208.96-70,789-13,924.72

Finding the Fourth Proportional to 47,208.96, 70,789 and 13,924.72

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Solution

The fourth proportional to 47,208.96, 70,789 and 13,924.72 is: 20,879.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,208.96 : 70,789 = 13,924.72 : x
  2. Step 2: Convert to fraction form
    47,208.96/70,789 = 13,924.72/x
  3. Step 3: Cross multiply
    47,208.96x = 70,789 × 13,924.72
  4. Step 4: Simplify right side
    47,208.96x = 985,717,004.08
  5. Step 5: Solve for x
    x = 985,717,004.08/47,208.96
  6. Step 6: Final answer
    x = 20,879.87

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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.