Home / 28,705.36-43,060.21-7,645.31

Finding the Fourth Proportional to 28,705.36, 43,060.21 and 7,645.31

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Solution

The fourth proportional to 28,705.36, 43,060.21 and 7,645.31 is: 11,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.36 : 43,060.21 = 7,645.31 : x
  2. Step 2: Convert to fraction form
    28,705.36/43,060.21 = 7,645.31/x
  3. Step 3: Cross multiply
    28,705.36x = 43,060.21 × 7,645.31
  4. Step 4: Simplify right side
    28,705.36x = 329,208,702.28
  5. Step 5: Solve for x
    x = 329,208,702.28/28,705.36
  6. Step 6: Final answer
    x = 11,468.54

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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.