Home / 47,221.70-70,845.48-13,941.75

Finding the Fourth Proportional to 47,221.70, 70,845.48 and 13,941.75

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Solution

The fourth proportional to 47,221.70, 70,845.48 and 13,941.75 is: 20,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,221.70 : 70,845.48 = 13,941.75 : x
  2. Step 2: Convert to fraction form
    47,221.70/70,845.48 = 13,941.75/x
  3. Step 3: Cross multiply
    47,221.70x = 70,845.48 × 13,941.75
  4. Step 4: Simplify right side
    47,221.70x = 987,709,970.79
  5. Step 5: Solve for x
    x = 987,709,970.79/47,221.70
  6. Step 6: Final answer
    x = 20,916.44

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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.