Home / 20,233.70-30,336.15-7,748.90

Finding the Fourth Proportional to 20,233.70, 30,336.15 and 7,748.90

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Solution

The fourth proportional to 20,233.70, 30,336.15 and 7,748.90 is: 11,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.70 : 30,336.15 = 7,748.90 : x
  2. Step 2: Convert to fraction form
    20,233.70/30,336.15 = 7,748.90/x
  3. Step 3: Cross multiply
    20,233.70x = 30,336.15 × 7,748.90
  4. Step 4: Simplify right side
    20,233.70x = 235,071,792.74
  5. Step 5: Solve for x
    x = 235,071,792.74/20,233.70
  6. Step 6: Final answer
    x = 11,617.84

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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.