Home / 43,765.84-65,666.58-20,377.90

Finding the Fourth Proportional to 43,765.84, 65,666.58 and 20,377.90

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Solution

The fourth proportional to 43,765.84, 65,666.58 and 20,377.90 is: 30,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,765.84 : 65,666.58 = 20,377.90 : x
  2. Step 2: Convert to fraction form
    43,765.84/65,666.58 = 20,377.90/x
  3. Step 3: Cross multiply
    43,765.84x = 65,666.58 × 20,377.90
  4. Step 4: Simplify right side
    43,765.84x = 1,338,147,000.58
  5. Step 5: Solve for x
    x = 1,338,147,000.58/43,765.84
  6. Step 6: Final answer
    x = 30,575.15

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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.