Home / 20,624.84-28,462.10-11,193.40

Finding the Fourth Proportional to 20,624.84, 28,462.10 and 11,193.40

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Solution

The fourth proportional to 20,624.84, 28,462.10 and 11,193.40 is: 15,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.84 : 28,462.10 = 11,193.40 : x
  2. Step 2: Convert to fraction form
    20,624.84/28,462.10 = 11,193.40/x
  3. Step 3: Cross multiply
    20,624.84x = 28,462.10 × 11,193.40
  4. Step 4: Simplify right side
    20,624.84x = 318,587,626.97
  5. Step 5: Solve for x
    x = 318,587,626.97/20,624.84
  6. Step 6: Final answer
    x = 15,446.80

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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.