Home / 47,795.40-65,961.12-28,676

Finding the Fourth Proportional to 47,795.40, 65,961.12 and 28,676

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Solution

The fourth proportional to 47,795.40, 65,961.12 and 28,676 is: 39,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,795.40 : 65,961.12 = 28,676 : x
  2. Step 2: Convert to fraction form
    47,795.40/65,961.12 = 28,676/x
  3. Step 3: Cross multiply
    47,795.40x = 65,961.12 × 28,676
  4. Step 4: Simplify right side
    47,795.40x = 1,891,501,077.12
  5. Step 5: Solve for x
    x = 1,891,501,077.12/47,795.40
  6. Step 6: Final answer
    x = 39,574.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.