Home / 29,138.64-43,707.98-13,109.45

Finding the Fourth Proportional to 29,138.64, 43,707.98 and 13,109.45

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Solution

The fourth proportional to 29,138.64, 43,707.98 and 13,109.45 is: 19,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.64 : 43,707.98 = 13,109.45 : x
  2. Step 2: Convert to fraction form
    29,138.64/43,707.98 = 13,109.45/x
  3. Step 3: Cross multiply
    29,138.64x = 43,707.98 × 13,109.45
  4. Step 4: Simplify right side
    29,138.64x = 572,987,622.13
  5. Step 5: Solve for x
    x = 572,987,622.13/29,138.64
  6. Step 6: Final answer
    x = 19,664.18

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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.