Home / 47,021.31-70,532.37-11,961

Finding the Fourth Proportional to 47,021.31, 70,532.37 and 11,961

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Solution

The fourth proportional to 47,021.31, 70,532.37 and 11,961 is: 17,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,021.31 : 70,532.37 = 11,961 : x
  2. Step 2: Convert to fraction form
    47,021.31/70,532.37 = 11,961/x
  3. Step 3: Cross multiply
    47,021.31x = 70,532.37 × 11,961
  4. Step 4: Simplify right side
    47,021.31x = 843,637,677.57
  5. Step 5: Solve for x
    x = 843,637,677.57/47,021.31
  6. Step 6: Final answer
    x = 17,941.60

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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.