Home / 30,813.12-42,522.41-18,073.84

Finding the Fourth Proportional to 30,813.12, 42,522.41 and 18,073.84

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Solution

The fourth proportional to 30,813.12, 42,522.41 and 18,073.84 is: 24,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.12 : 42,522.41 = 18,073.84 : x
  2. Step 2: Convert to fraction form
    30,813.12/42,522.41 = 18,073.84/x
  3. Step 3: Cross multiply
    30,813.12x = 42,522.41 × 18,073.84
  4. Step 4: Simplify right side
    30,813.12x = 768,543,234.75
  5. Step 5: Solve for x
    x = 768,543,234.75/30,813.12
  6. Step 6: Final answer
    x = 24,942.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.