Home / 30,780.41-46,257.18-18,302.66

Finding the Fourth Proportional to 30,780.41, 46,257.18 and 18,302.66

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Solution

The fourth proportional to 30,780.41, 46,257.18 and 18,302.66 is: 27,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.41 : 46,257.18 = 18,302.66 : x
  2. Step 2: Convert to fraction form
    30,780.41/46,257.18 = 18,302.66/x
  3. Step 3: Cross multiply
    30,780.41x = 46,257.18 × 18,302.66
  4. Step 4: Simplify right side
    30,780.41x = 846,629,311.64
  5. Step 5: Solve for x
    x = 846,629,311.64/30,780.41
  6. Step 6: Final answer
    x = 27,505.46

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1.5x scale

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.