Home / 29,131.08-43,696.65-12,480.32

Finding the Fourth Proportional to 29,131.08, 43,696.65 and 12,480.32

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Solution

The fourth proportional to 29,131.08, 43,696.65 and 12,480.32 is: 18,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,131.08 : 43,696.65 = 12,480.32 : x
  2. Step 2: Convert to fraction form
    29,131.08/43,696.65 = 12,480.32/x
  3. Step 3: Cross multiply
    29,131.08x = 43,696.65 × 12,480.32
  4. Step 4: Simplify right side
    29,131.08x = 545,348,174.93
  5. Step 5: Solve for x
    x = 545,348,174.93/29,131.08
  6. Step 6: Final answer
    x = 18,720.49

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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.