Home / 47,415.63-71,142.59-21,102.38

Finding the Fourth Proportional to 47,415.63, 71,142.59 and 21,102.38

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Solution

The fourth proportional to 47,415.63, 71,142.59 and 21,102.38 is: 31,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,415.63 : 71,142.59 = 21,102.38 : x
  2. Step 2: Convert to fraction form
    47,415.63/71,142.59 = 21,102.38/x
  3. Step 3: Cross multiply
    47,415.63x = 71,142.59 × 21,102.38
  4. Step 4: Simplify right side
    47,415.63x = 1,501,277,968.36
  5. Step 5: Solve for x
    x = 1,501,277,968.36/47,415.63
  6. Step 6: Final answer
    x = 31,662.09

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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.