Home / 43,818.28-65,774.22-18,870.68

Finding the Fourth Proportional to 43,818.28, 65,774.22 and 18,870.68

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Solution

The fourth proportional to 43,818.28, 65,774.22 and 18,870.68 is: 28,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,818.28 : 65,774.22 = 18,870.68 : x
  2. Step 2: Convert to fraction form
    43,818.28/65,774.22 = 18,870.68/x
  3. Step 3: Cross multiply
    43,818.28x = 65,774.22 × 18,870.68
  4. Step 4: Simplify right side
    43,818.28x = 1,241,204,257.87
  5. Step 5: Solve for x
    x = 1,241,204,257.87/43,818.28
  6. Step 6: Final answer
    x = 28,326.17

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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.