Home / 43,355.37-65,032.13-19,981.81

Finding the Fourth Proportional to 43,355.37, 65,032.13 and 19,981.81

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Solution

The fourth proportional to 43,355.37, 65,032.13 and 19,981.81 is: 29,972.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,355.37 : 65,032.13 = 19,981.81 : x
  2. Step 2: Convert to fraction form
    43,355.37/65,032.13 = 19,981.81/x
  3. Step 3: Cross multiply
    43,355.37x = 65,032.13 × 19,981.81
  4. Step 4: Simplify right side
    43,355.37x = 1,299,459,665.56
  5. Step 5: Solve for x
    x = 1,299,459,665.56/43,355.37
  6. Step 6: Final answer
    x = 29,972.29

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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.