Home / 43,308.70-64,964.87-13,725.88

Finding the Fourth Proportional to 43,308.70, 64,964.87 and 13,725.88

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Solution

The fourth proportional to 43,308.70, 64,964.87 and 13,725.88 is: 20,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.70 : 64,964.87 = 13,725.88 : x
  2. Step 2: Convert to fraction form
    43,308.70/64,964.87 = 13,725.88/x
  3. Step 3: Cross multiply
    43,308.70x = 64,964.87 × 13,725.88
  4. Step 4: Simplify right side
    43,308.70x = 891,700,009.84
  5. Step 5: Solve for x
    x = 891,700,009.84/43,308.70
  6. Step 6: Final answer
    x = 20,589.40

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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.