Home / 43,564.28-65,354.91-13,979.84

Finding the Fourth Proportional to 43,564.28, 65,354.91 and 13,979.84

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Solution

The fourth proportional to 43,564.28, 65,354.91 and 13,979.84 is: 20,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,564.28 : 65,354.91 = 13,979.84 : x
  2. Step 2: Convert to fraction form
    43,564.28/65,354.91 = 13,979.84/x
  3. Step 3: Cross multiply
    43,564.28x = 65,354.91 × 13,979.84
  4. Step 4: Simplify right side
    43,564.28x = 913,650,858.24
  5. Step 5: Solve for x
    x = 913,650,858.24/43,564.28
  6. Step 6: Final answer
    x = 20,972.48

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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.