Home / 29,129.12-43,619.54-19,253.60

Finding the Fourth Proportional to 29,129.12, 43,619.54 and 19,253.60

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Solution

The fourth proportional to 29,129.12, 43,619.54 and 19,253.60 is: 28,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.12 : 43,619.54 = 19,253.60 : x
  2. Step 2: Convert to fraction form
    29,129.12/43,619.54 = 19,253.60/x
  3. Step 3: Cross multiply
    29,129.12x = 43,619.54 × 19,253.60
  4. Step 4: Simplify right side
    29,129.12x = 839,833,175.34
  5. Step 5: Solve for x
    x = 839,833,175.34/29,129.12
  6. Step 6: Final answer
    x = 28,831.40

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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.