Home / 20,317.72-30,461.94-9,218.84

Finding the Fourth Proportional to 20,317.72, 30,461.94 and 9,218.84

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Solution

The fourth proportional to 20,317.72, 30,461.94 and 9,218.84 is: 13,821.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.72 : 30,461.94 = 9,218.84 : x
  2. Step 2: Convert to fraction form
    20,317.72/30,461.94 = 9,218.84/x
  3. Step 3: Cross multiply
    20,317.72x = 30,461.94 × 9,218.84
  4. Step 4: Simplify right side
    20,317.72x = 280,823,750.95
  5. Step 5: Solve for x
    x = 280,823,750.95/20,317.72
  6. Step 6: Final answer
    x = 13,821.62

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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.