Home / 47,622.48-71,427.96-12,564.78

Finding the Fourth Proportional to 47,622.48, 71,427.96 and 12,564.78

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Solution

The fourth proportional to 47,622.48, 71,427.96 and 12,564.78 is: 18,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,622.48 : 71,427.96 = 12,564.78 : x
  2. Step 2: Convert to fraction form
    47,622.48/71,427.96 = 12,564.78/x
  3. Step 3: Cross multiply
    47,622.48x = 71,427.96 × 12,564.78
  4. Step 4: Simplify right side
    47,622.48x = 897,476,603.25
  5. Step 5: Solve for x
    x = 897,476,603.25/47,622.48
  6. Step 6: Final answer
    x = 18,845.65

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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.