Home / 20,956,530.24-28,904,422.64-18,504,815.76

Finding the Fourth Proportional to 20,956,530.24, 28,904,422.64 and 18,504,815.76

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Solution

The fourth proportional to 20,956,530.24, 28,904,422.64 and 18,504,815.76 is: 25,522,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,530.24 : 28,904,422.64 = 18,504,815.76 : x
  2. Step 2: Convert to fraction form
    20,956,530.24/28,904,422.64 = 18,504,815.76/x
  3. Step 3: Cross multiply
    20,956,530.24x = 28,904,422.64 × 18,504,815.76
  4. Step 4: Simplify right side
    20,956,530.24x = 534,871,015,602,372.88
  5. Step 5: Solve for x
    x = 534,871,015,602,372.88/20,956,530.24
  6. Step 6: Final answer
    x = 25,522,880.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.