Home / 20,248.62-30,334.05-11,457.42

Finding the Fourth Proportional to 20,248.62, 30,334.05 and 11,457.42

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Solution

The fourth proportional to 20,248.62, 30,334.05 and 11,457.42 is: 17,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.62 : 30,334.05 = 11,457.42 : x
  2. Step 2: Convert to fraction form
    20,248.62/30,334.05 = 11,457.42/x
  3. Step 3: Cross multiply
    20,248.62x = 30,334.05 × 11,457.42
  4. Step 4: Simplify right side
    20,248.62x = 347,549,951.15
  5. Step 5: Solve for x
    x = 347,549,951.15/20,248.62
  6. Step 6: Final answer
    x = 17,164.13

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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.