Home / 21,249,936.20-31,821,760.20-16,998,408.20

Finding the Fourth Proportional to 21,249,936.20, 31,821,760.20 and 16,998,408.20

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Solution

The fourth proportional to 21,249,936.20, 31,821,760.20 and 16,998,408.20 is: 25,455,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249,936.20 : 31,821,760.20 = 16,998,408.20 : x
  2. Step 2: Convert to fraction form
    21,249,936.20/31,821,760.20 = 16,998,408.20/x
  3. Step 3: Cross multiply
    21,249,936.20x = 31,821,760.20 × 16,998,408.20
  4. Step 4: Simplify right side
    21,249,936.20x = 540,919,269,522,113.62
  5. Step 5: Solve for x
    x = 540,919,269,522,113.62/21,249,936.20
  6. Step 6: Final answer
    x = 25,455,100.87

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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.