Home / 43,308.45-64,964.70-13,728.60

Finding the Fourth Proportional to 43,308.45, 64,964.70 and 13,728.60

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Solution

The fourth proportional to 43,308.45, 64,964.70 and 13,728.60 is: 20,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.45 : 64,964.70 = 13,728.60 : x
  2. Step 2: Convert to fraction form
    43,308.45/64,964.70 = 13,728.60/x
  3. Step 3: Cross multiply
    43,308.45x = 64,964.70 × 13,728.60
  4. Step 4: Simplify right side
    43,308.45x = 891,874,380.42
  5. Step 5: Solve for x
    x = 891,874,380.42/43,308.45
  6. Step 6: Final answer
    x = 20,593.54

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1.5x scale

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.