Home / 29,128.80-43,670.52-13,544.40

Finding the Fourth Proportional to 29,128.80, 43,670.52 and 13,544.40

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Solution

The fourth proportional to 29,128.80, 43,670.52 and 13,544.40 is: 20,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.80 : 43,670.52 = 13,544.40 : x
  2. Step 2: Convert to fraction form
    29,128.80/43,670.52 = 13,544.40/x
  3. Step 3: Cross multiply
    29,128.80x = 43,670.52 × 13,544.40
  4. Step 4: Simplify right side
    29,128.80x = 591,490,991.09
  5. Step 5: Solve for x
    x = 591,490,991.09/29,128.80
  6. Step 6: Final answer
    x = 20,306.05

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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.