Home / 43,311.40-64,956.86-18,673.96

Finding the Fourth Proportional to 43,311.40, 64,956.86 and 18,673.96

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Solution

The fourth proportional to 43,311.40, 64,956.86 and 18,673.96 is: 28,006.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.40 : 64,956.86 = 18,673.96 : x
  2. Step 2: Convert to fraction form
    43,311.40/64,956.86 = 18,673.96/x
  3. Step 3: Cross multiply
    43,311.40x = 64,956.86 × 18,673.96
  4. Step 4: Simplify right side
    43,311.40x = 1,213,001,805.37
  5. Step 5: Solve for x
    x = 1,213,001,805.37/43,311.40
  6. Step 6: Final answer
    x = 28,006.52

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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.