Home / 36,405.67-54,534.69-18,838.60

Finding the Fourth Proportional to 36,405.67, 54,534.69 and 18,838.60

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Solution

The fourth proportional to 36,405.67, 54,534.69 and 18,838.60 is: 28,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.67 : 54,534.69 = 18,838.60 : x
  2. Step 2: Convert to fraction form
    36,405.67/54,534.69 = 18,838.60/x
  3. Step 3: Cross multiply
    36,405.67x = 54,534.69 × 18,838.60
  4. Step 4: Simplify right side
    36,405.67x = 1,027,357,211.03
  5. Step 5: Solve for x
    x = 1,027,357,211.03/36,405.67
  6. Step 6: Final answer
    x = 28,219.70

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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.