Home / 43,564.20-65,358.45-21,378.30

Finding the Fourth Proportional to 43,564.20, 65,358.45 and 21,378.30

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Solution

The fourth proportional to 43,564.20, 65,358.45 and 21,378.30 is: 32,073.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,564.20 : 65,358.45 = 21,378.30 : x
  2. Step 2: Convert to fraction form
    43,564.20/65,358.45 = 21,378.30/x
  3. Step 3: Cross multiply
    43,564.20x = 65,358.45 × 21,378.30
  4. Step 4: Simplify right side
    43,564.20x = 1,397,252,551.64
  5. Step 5: Solve for x
    x = 1,397,252,551.64/43,564.20
  6. Step 6: Final answer
    x = 32,073.41

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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.