Home / 36,005.12-54,002.20-13,828.96

Finding the Fourth Proportional to 36,005.12, 54,002.20 and 13,828.96

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Solution

The fourth proportional to 36,005.12, 54,002.20 and 13,828.96 is: 20,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,005.12 : 54,002.20 = 13,828.96 : x
  2. Step 2: Convert to fraction form
    36,005.12/54,002.20 = 13,828.96/x
  3. Step 3: Cross multiply
    36,005.12x = 54,002.20 × 13,828.96
  4. Step 4: Simplify right side
    36,005.12x = 746,794,263.71
  5. Step 5: Solve for x
    x = 746,794,263.71/36,005.12
  6. Step 6: Final answer
    x = 20,741.34

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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.