Home / 47,021.76-70,542.36-20,725.92

Finding the Fourth Proportional to 47,021.76, 70,542.36 and 20,725.92

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Solution

The fourth proportional to 47,021.76, 70,542.36 and 20,725.92 is: 31,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,021.76 : 70,542.36 = 20,725.92 : x
  2. Step 2: Convert to fraction form
    47,021.76/70,542.36 = 20,725.92/x
  3. Step 3: Cross multiply
    47,021.76x = 70,542.36 × 20,725.92
  4. Step 4: Simplify right side
    47,021.76x = 1,462,055,309.97
  5. Step 5: Solve for x
    x = 1,462,055,309.97/47,021.76
  6. Step 6: Final answer
    x = 31,093.16

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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.