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Finding the Fourth Proportional to 43,973.76, 65,964.96 and 19,009.92

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Solution

The fourth proportional to 43,973.76, 65,964.96 and 19,009.92 is: 28,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,973.76 : 65,964.96 = 19,009.92 : x
  2. Step 2: Convert to fraction form
    43,973.76/65,964.96 = 19,009.92/x
  3. Step 3: Cross multiply
    43,973.76x = 65,964.96 × 19,009.92
  4. Step 4: Simplify right side
    43,973.76x = 1,253,988,612.40
  5. Step 5: Solve for x
    x = 1,253,988,612.40/43,973.76
  6. Step 6: Final answer
    x = 28,516.75

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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.