Home / 43,918.84-65,831.05-18,970.62

Finding the Fourth Proportional to 43,918.84, 65,831.05 and 18,970.62

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Solution

The fourth proportional to 43,918.84, 65,831.05 and 18,970.62 is: 28,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.84 : 65,831.05 = 18,970.62 : x
  2. Step 2: Convert to fraction form
    43,918.84/65,831.05 = 18,970.62/x
  3. Step 3: Cross multiply
    43,918.84x = 65,831.05 × 18,970.62
  4. Step 4: Simplify right side
    43,918.84x = 1,248,855,833.75
  5. Step 5: Solve for x
    x = 1,248,855,833.75/43,918.84
  6. Step 6: Final answer
    x = 28,435.54

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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.