Home / 43,837.32-65,765.70-20,451

Finding the Fourth Proportional to 43,837.32, 65,765.70 and 20,451

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Solution

The fourth proportional to 43,837.32, 65,765.70 and 20,451 is: 30,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,837.32 : 65,765.70 = 20,451 : x
  2. Step 2: Convert to fraction form
    43,837.32/65,765.70 = 20,451/x
  3. Step 3: Cross multiply
    43,837.32x = 65,765.70 × 20,451
  4. Step 4: Simplify right side
    43,837.32x = 1,344,974,330.70
  5. Step 5: Solve for x
    x = 1,344,974,330.70/43,837.32
  6. Step 6: Final answer
    x = 30,681.03

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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.