Home / 43,981.36-65,972-17,679.94

Finding the Fourth Proportional to 43,981.36, 65,972 and 17,679.94

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Solution

The fourth proportional to 43,981.36, 65,972 and 17,679.94 is: 26,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,981.36 : 65,972 = 17,679.94 : x
  2. Step 2: Convert to fraction form
    43,981.36/65,972 = 17,679.94/x
  3. Step 3: Cross multiply
    43,981.36x = 65,972 × 17,679.94
  4. Step 4: Simplify right side
    43,981.36x = 1,166,381,001.68
  5. Step 5: Solve for x
    x = 1,166,381,001.68/43,981.36
  6. Step 6: Final answer
    x = 26,519.89

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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.