Home / 47,309.03-70,962-19,220.78

Finding the Fourth Proportional to 47,309.03, 70,962 and 19,220.78

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Solution

The fourth proportional to 47,309.03, 70,962 and 19,220.78 is: 28,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,309.03 : 70,962 = 19,220.78 : x
  2. Step 2: Convert to fraction form
    47,309.03/70,962 = 19,220.78/x
  3. Step 3: Cross multiply
    47,309.03x = 70,962 × 19,220.78
  4. Step 4: Simplify right side
    47,309.03x = 1,363,944,635.55
  5. Step 5: Solve for x
    x = 1,363,944,635.55/47,309.03
  6. Step 6: Final answer
    x = 28,830.54

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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.