Home / 43,355.55-65,032.41-19,981.98

Finding the Fourth Proportional to 43,355.55, 65,032.41 and 19,981.98

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Solution

The fourth proportional to 43,355.55, 65,032.41 and 19,981.98 is: 29,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,355.55 : 65,032.41 = 19,981.98 : x
  2. Step 2: Convert to fraction form
    43,355.55/65,032.41 = 19,981.98/x
  3. Step 3: Cross multiply
    43,355.55x = 65,032.41 × 19,981.98
  4. Step 4: Simplify right side
    43,355.55x = 1,299,476,315.97
  5. Step 5: Solve for x
    x = 1,299,476,315.97/43,355.55
  6. Step 6: Final answer
    x = 29,972.55

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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.