Home / 20,279.46-30,401.57-9,744.20

Finding the Fourth Proportional to 20,279.46, 30,401.57 and 9,744.20

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Solution

The fourth proportional to 20,279.46, 30,401.57 and 9,744.20 is: 14,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.46 : 30,401.57 = 9,744.20 : x
  2. Step 2: Convert to fraction form
    20,279.46/30,401.57 = 9,744.20/x
  3. Step 3: Cross multiply
    20,279.46x = 30,401.57 × 9,744.20
  4. Step 4: Simplify right side
    20,279.46x = 296,238,777.67
  5. Step 5: Solve for x
    x = 296,238,777.67/20,279.46
  6. Step 6: Final answer
    x = 14,607.82

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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.